Others

Small silicone mold tray Small Size: 9cm х 1.4cm(3.5in х 0.6in) Inner size: 8cm(3.1in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

Medium silicone mold tray Medium Size: 11.5cm х 1.7cm(4.5in х 0.7in) Inner size: 10cm(3.9in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold planter Size: 4.5cm х 4.5cm х H5cm(1.8in х 1.8in х 2in) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold planter Size: 6.5cm х 6.5cm х H7cm(2.6in х 2.6in х 2.8in) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold box with lid with suport shell. The shell is needed for the ideal shape geometry of the finished product Type 1: Box size with lid: 10cm х 12.5cm х H3.7cm(4in х 5in х 1.5in) Inner size: 8.8cm х 11.4cm х H2cm(3.5in х 4.5in х 0.8in) Wall thickness: 0.6cm(0.2in) Type 2: Box size with lid: 14cm х 7cm х H5cm(5.5in х 2.8in х H2in) Inner size: 12.8cm х 5.8cm х H3.9cm(5in х 2.3in х 1.5in) Wall thickness: 0.6cm(0.2in) Type 3: Box size with lid: 15cm х 10cm х H7cm(6in х 4in х H2.7in) Inner size: 12.5cm х 7.5cm х H5.7cm(5in х 3in х 2.2in) Wall thickness: 1.2cm(0.5in) Type 4: Box size with lid: 7.5cm х 7.5cm х H4.5cm(3in х 3in х H1.7in) Inner size: 6.2cm х 6.2cm х H3.8cm(2.5in х 2.5in х 1.5in) Wall thickness: 0.6cm(0.2in) On the cover can be your logo Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone and shell may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold cube Small Size: 5cm х 5cm х H5cm(2in х 2in х 2in) Inner size: 3.8cm х 3.8cm х H4.35cm(1.5in х 1.5in х 1.6in) Wall thickness: 0.6cm (0.24in) Here you can see other geometric molds for concrete for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold dog Size 7cm х 5.5cm х 4cm (2.8in х 2.2in х 1.6in) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Mold type - one part with a cut made by a special knife mold (to create excellent registration and alignment). When casting with molds, the seam line is the most obvious indication to a viewer that a mold was used. The advantage of this mold - seamless castings of the finished product. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone square Large mold tray Size: 18.5cm х 2.4cm(7.3in х 0.9in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold oval tray Size: 14cm х 7.5cm х 2.4cm(5.5in х 3in х 1in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold triangle tray Size: 15cm х 2.3cm(5.9in х 0.9in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

Small silicone mold coaster Circle, Square, Hexahedron Size: 10cm х 1cm(3.9in х 0.4in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

Medium silicone mold coaster Circle, Square, Hexahedron Size: 15cm х 1cm(5.9in х 0.4in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold cat Size 9.5cm х 3.5cm х 3.5cm (3.7in х 1.4in х 1.4in) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold cube 4" Large with support shell. The shell is needed for the ideal shape geometry of the finished product Size: 10cm х 10cm х H10cm(4in х 4in х 4in) Inner size: 8cm х 8cm х H9cm(3.1in х 3.1in х 3.5in) Wall thickness: 1cm (0.4in) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone and shell may vary. Suitable for use with concrete, plaster, chocolate, resin. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold Geodesic Sphere 3" Medium Size Geodesic Sphere: 10cm х 7.5cm(4in х 3in) The size of the inner hole: W 5.8cm(2.3in) х H 5.3cm(2) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold Rectangular Size: 7cm х 14cm х H4.5cm(2.8in х 5.5in х H1.8in) Inner size: 5.8cm х 12.8cm х H3.9cm(2.3in х 5in х 1.5in) Wall thickness: 0.6cm (0.24in) The shell is needed for the ideal shape geometry of the finished product Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone and shell may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold ashtray Size: 10cm х 2.8cm(4in х 1.1in) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

Silicone mold for wall clock Size: 25cm х 25cm х 2cm(9.8in х 9.8iin х 0.8in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

Silicone mold cozster Square Size: 9.5cm (3.5in) Сircle size: 8cm(3.1in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold tray Size: 10cm х 6.5cm х 3cm(3.9in х 2.6in х 1.2in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

Silicone mold for wall tiles, elements that can make eight different kinds of ornament. Size: 25cm х 11cm х 2.3cm(9.8in х 4.3in х 0.9in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold planter wavy Size: W6.6cm х H6.6cm(W2.6in х H2.6in) Wall thickness 0.9cm(0,35in) Here you can see other geometric molds https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold candle holder/planter Size Type 1 Small: W6cm х H4.2cm(W2.4in х H1.6in) Size Type 2 Medium : W6.5cm х H6cm(W2.6in х H2.4in) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.

silicone mold candle holder/planter Size: W6cm х H3.7cm(W2.4in х H1.5in) Here you can see other geometric molds for concrete https://www.etsy.com/shop/LGSiliconeMolds?section_id=18279750 Manufactured from highest quality food grade platinum silicone. The color of silicone may vary. Suitable for use with concrete, plaster, chocolate, resin, ice, wax, clay, polymer clay, soap, candle. Microwave and freezer safe. Silicone mold (food safe) temperature ranging from -50°C to +200°C (from -58ºF to 392ºF ). Platinum Silicones: - do not become brittle or break-down over time making them suitable for long-term art pieces and molds - platinum pieces have greater temperature and chemical durability than tin-based pieces - platinum silicones have the greatest chemical, microbial, and temperature resistance, and generally remain flexible for years. In contrast, tin cured silicones tend to become somewhat brittle after a few to several years, and begin to split or tear. To create at mold I need 1-4 days, but I do as soon as possible. Hand made in smoke and pet free home with love.