SpecSeal Range-Taking Firestop Collar

SpecSeal Range-Taking Firestop Collar

SpecSeal® RTC Firestop Collars are versatile, adjustable intumescent firestop devices designed to accommodate multiple sizes of combustible plastic pipe. A single RTC Collar is engineered to fit both 3‑inch and 4‑inch plastic pipes, including their associated couplings, making it an ideal all‑in‑one solution for diverse jobsite conditions. Thanks to its adaptable design, the SpecSeal RTC Firestop Collar allows installers to quickly bring nonmetallic pipe penetrations up to code, reducing the need for multiple collar sizes and simplifying inventory management. This flexibility makes RTC Firestop Collars a highly effective and time‑friendly option for achieving reliable fire resistance in commercial and residential construction.

Test Standards ASTM E814 (UL1479)
CAN/ULC-S115

Third Party Approvals

Compare

Features

Adjustable - one collar fits 3” (89 mm) pipe, 3” (102 mm) coupling, 4” (114 mm) pipe, and 4” (127 mm) coupling
Rapid expansion - closes off burning pipes quickly
Small profile - use it in all the tight spots
Flexible & durable - no loose flakes (eye hazards)
Water resistant - no water soluble or hygroscopic ingredients
High volume char - expands up to 60 times

Applications

Plastic Pipe

Properties

Permanent

Finished Product

Intumescent

Low VOC

No Expiration

Specifications

Property	Value
Shell Construction	Nom 22 GA galvanized steel (0.03" (0.76 mm) thick)
Intumescent Insert	Molded one piece
Sizes accommodated	3" trade size pipe (89 mm), 3" trade size pipe fitting (102 mm), 4" trade size pipe (114 mm), 4" trade size pipe fitting (127 mm)
Expansion Begins	320°F (160°C)
Volume Expansion	32x to 64x (free expansion)
In Service Temperature	Less than 120°F (49°C)
Shelf Life	No Limit

Ordering Information

Catalog Number	UPC Number	Description	(UOM) Qty.	Case Qty.	Weight (Each)	Image
RTC350	730573038352	Firestop Collar For 3" and 4" Trade Size Pipe and Corresponding Fittings	1	6	0.8 lbs

SpecSeal Range-Taking Firestop Collar

STI leads the industry in developing innovative fire protection systems that help stop the spread of fire, smoke and hot gases. For over 25 years, our team has worked hand in hand with the construction industry to create simple solutions to complex firestopping problems. Our SpecSeal® and EZ Path® product lines are engineered to deliver powerful performance. Because our system designs are user-driven, they are easier to apply. The result is simply designed, outstanding fire protection systems which often result in lower installed costs. STI products and systems offer innovative firestop solutions for all types of new construction and retrofit applications. Since firestopping is our only business, we concentrate all our resources on providing the highest quality, fully tested, innovative firestopping solutions.

Watch More Videos