Resources
Firestop guides & how-to
Straight answers to the questions we get every day — how to choose the right product, firestop different penetrations, and read the ratings. Written by an authorized Metacaulk® distributor.
How to Choose the Right Firestop Sealant
Intumescent, elastomeric, silicone or economical? A plain-English guide to choosing the right firestop sealant by penetration type, movement and environment.
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How to Firestop Pipe Penetrations (Plastic vs. Metallic)
Metallic pipe and plastic pipe are firestopped in opposite ways. Here's when you need a sealant, a collar, or a wrap strip — and why plastic pipe is the tricky one.
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Firestop Ratings Explained: F-Rating, T-Rating & UL Systems
What F-rating and T-rating mean, how firestop is tested to UL 1479 (ASTM E814), and how to read a UL system so you order the right product for your assembly.
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Firestop for Electrical Boxes: Putty Pads & Box Inserts
When electrical boxes need firestopping in a rated wall, and how to do it — putty pads, Box Guard and Cover Guard inserts — for new construction or retrofit.
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How to Firestop a Cable Tray
Firestopping a cable tray through a rated wall or floor: re-enterable pillows, intumescent sealant and C70 cable coating — and how to keep it re-enterable as cables change.
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Head-of-Wall & Construction Joint Firestop
How to firestop the head-of-wall joint and other dynamic joints — why movement matters, and choosing elastomeric sealant, spray, or joint strip for a rated joint system.
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