Metacaulk 835+ is a top - notch one - component, fire - rated elastomeric silicone sealant designed for through penetration firestops. It's your reliable solution to prevent flames, smoke, gas, and water from spreading through penetration openings. Made from silicone, it's perfect for systems where dynamic movement is expected.
Features:
- It has an STC rating of 55 and is FBC System Compatible. This means it has been thoroughly tested and continuously monitored to ensure chemical compatibility with Flow Guard Gold, Blaze Master, and Corzan pipe and fittings.
- It's a single - component penetration sealant system, so no mixing or extra additives are needed. It's hassle - free!
- With a flexible and non - slump formula, it cures neutrally with moisture and has a low odor. It offers excellent moisture resistance and is protected against mold growth in both wet and dry stages thanks to a combination of biocides.
- It's not regulated by DOT Classification.
- You can use it in interior or exterior expansion, contraction, and control joints, as well as in exterior and interior penetrations. It comes in two grades: caulk grade and self - leveling. You can apply it with a conventional caulking gun, trowel, or pumping equipment.
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It seals wall and floor penetrations for electrical, plumbing, and telecom systems. It also prevents the spread of fire through fire - rated gypsum wallboard partitions, concrete block, or concrete walls and floors. The self - leveling type is great for curtain wall and floor joint applications.Certified Clean Air Gold Certificate
Certificate of Compliance FM Approvals 3971 and 4990
PDS | 835+ Elastomeric, Silicone Firestop Sealant - English
PDS | 835+ Spray - English
SDS | 835+ Elastomeric, Silicone Firestop Sealant - English
SDS | 835+ Spray - English
SDS - Spanish
Using Metacaulk 835+ is easy. First, choose the right grade for your project. If you're dealing with joints that need to self - level, go for the self - leveling grade. For other applications, the caulk grade works well. You can use a conventional caulking gun, trowel, or pumping equipment to apply it. Just make sure the surface is clean and dry before application. When it comes to maintenance, this sealant has excellent moisture resistance and is protected against mold growth. But still, it's a good idea to check the sealed areas from time to time, especially in areas with high humidity. As for safety, it's not regulated by DOT Classification, but always follow the general safety rules when working with sealants. If you have any specific questions or need more detailed guidance, refer to the provided PDS and SDS documents.
