TinSil® Brush/Spray 25 Silicone Rubber

tinsil-brush-spray-25TinSil® Brush/Spray 25 is a 1A:10B mix, brushable or sprayable tin silicone rubber that cures to a mid-range hardness of Shore A25. Upon mixing, this rubber becomes creamy and thixotropic so it can be applied by brush or sprayed onto vertical surfaces to make thin blanket molds of complex masters or originals.

TinSil Brush/Spray 25 molds can be sprayed in a single application using low-cost, portable Plas-Pak spray equipment or more sophisticated, higher volume spray systems.

TinSil Brush/Spray 25 molds are great for casting all media including polyester, polyurethane and epoxy resins as well as plaster and wax. No release agents needed for most applications.

Does not include Plas-Pak gun, cartridges or static mixer. For a pourable rubber with the same Shore hardness (A25), consider TinSil 70-25.

Only available in a 44-lb kit. 


Mix Ratio Shore Hardness Pour Time Cured Color Mixed Viscosity Specific Volume Demold Time
1A:10B A25 30 min. Translucent Thixotropic 25.3 in³/lb 16 – 24 hr.
Accessories: TinThix Liquid ThickenerSilicone Fluid 50csTinSil FastCat Accelerator


Product Literature: Technical Bulletin | Safety Data Sheets | Physical Properties Bulletin | Sealer & Release Agent Selection Guide

Video Tutorials on YouTube: TinSil Brush/Spray 25 Brush-On Mold of an Uneven Rock


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