Tin Base Mold Making Silicone

Description of Tin Base Mold Making Silicone

RTV2 Tin-based silicones, also called condensation cure silicone, are two- component materials which can cure at room temperature to flexible, high tear-strength rubbers. Tin cured silicone can be poured onto models or they can be made brushed by adding a thixotropic additive. They are ideal for molds where easy release or high temperature resistance (Max 200℃) is required.

Characteristics of Tin Base Mold Making Silicone

Tin cure silicone rubber for molding is white or translucent flowing liquid with general hardness of 15-60shore A after curing. Molding silicone rubber is a kind elastic silicone rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion as well as high reproduction times, good tensile strength ,tear strength and elongation, Stripping the gender is good, Linear shrinkage rate low, Size stability is good.

Applications of Tin Base Mold Making Silicone

Tin cured silicone can be used for casting polyurethane, epoxy, polyester resin, PU resin, cement, plaster, gypsum, candle, soap, waxes, toys crafts, poly resin crafts, Lighting, plastic toys, stationery gifts, statue, relieve furniture, furniture decorative materials, artificial stone, building decoration material, sculpture, sandstone, low melt alloys/metals, urethane and so on .

Data of Liquid Silicone Rubber for mould making (MSDS)

Tin condensation Rubber series

P Item NO.	Characteristics before curing							Curing
	Part A	Part B		Part A+ Part B				Pot life at 250C mins		De-molding Time at 250C
	Appearance			Ratio		Viscosity cps
RTV2015	Liquid white	Liquid clear		100:2				30-40		4-6 H
RTV2020	Liquid white	Liquid clear		100:2				30-40		4-6 H
	Characteristics after curing 24 hours
	Hardness Shore A		Tear strength (N/mm)		Tensile Strength		Elongation break (%)		Linear Shrinkage
RTV2015	13-15		25		≥3.8Mpa		600		≤0.3%
RTV2020	18-20		25		≥3.8Mpa		550		≤0.3%

Note: The TDS is just for reference, we can accord customer’s requirement to adjust the color, viscosity and hardness.

Instructions for Making Silicone Molds

Note: It is strongly recommended that entrapped air be removed in a vacuum chamber, allowing the mix to completely expand and then collapse. After a further 1-2 minutes under vacuum, the mix should be inspected and can be used if free of air bubbles. A volume increase of 3-5 times will occur on vacuum de-airing the mixture. So a suitably large container should be chosen.

Packing of Tin Base Mold Making Silicone

5kg/plastic drum, 25kg/plastic drum, 25kg/steel drum or 200kg/drum

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