RTV-3040 Clear Mold Making Silicone Rubber


Popular Specifications
36A-45A Variable Shore Hardness
40,000 cps Viscosity
100-120 ppi Tear Strength
Elkem RTV-3040, formerly Bluestar Bluesil RTV-3040, is specifically formulated to make clear rubber molds for complex parting lines and features the strength and clarity required in high-end prototyping applications. RTV-3040 Base with RTV-3040 Catalyst provides a 38 Shore A hardness, our most popular combination. The base may also be used with other catalysts resulting in hardnesses from 36-45 Shore A. It is compliant to 21CFR177.2600 (repeated food contact applications).

sample kit



SKU Description   UM Thick Width Length Height Board ft. Net Wt. Diameter Grade Grit Plys Radius SPB Ship Note Min. Qty Pcs/Box Pcs/Bundle Winding Ft/Box Handle Len Head Diam Head Len Mfg. # Qty
054903 RTV-3040 - Quart Unit EA 2.2
054823 RTV-3040 - Gallon Unit EA 11
054857KG RTV-3040 - 20 kg (Base Only) EA 44.1
054931KG RTV-3038 - 2 kg (Catalyst Only) SO EA 4.4
054858KG RTV-3040 - 2 kg (Catalyst Only) EA 4.4
054866 RTV-3045 - 2 kg (Catalyst Only) SO EA 4.4
054871KG RTV-3040 - 200 kg (Base Only) EA 440.9 FRT
054869KG RTV-3040 - 200 kg, Unlined (Base Only) EA 440.9 FRT
054937KG RTV-3038 - 20 kg (Catalyst Only) SO EA 44.1
054872KG RTV-3040 - 20 kg (Catalyst Only) EA 44.1

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Important Information

  • Shipping: Freeman charges standard published UPS/FedEx shipping rates (unless freight is specified). All orders under $25 are subject to a $5 small order fee. International orders are subject to a $250 minimum order.

  • Liquid products are sold by weight, not volume.

  • SPB = Sheets per Box

  • HAZ-G = Hazardous material, cannot ship air, up to $33 surcharge applied for each package shipped ground within the US.

  • HAZ-A = Hazardous material, cannot ship air, no surcharge for ground shipping.

  • HAZ-T = Toxic material, must be sent by freight carrier.

  • FRT = must be sent by freight carrier due to size, weight, or hazardous classification.


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