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PLUMBING

A PIPE INSULATION
B
C SELF-SEALING
D FLEXIBLE CLOSED CELL INSULATION
E
F Description
G
H FlexTherm® Seam-Seal pipe insulation is an environmentally friendly, CFC-free, flexible elasto-
I meric insulation, that is pre-slit with a factory-applied pressure sensitive adhesive. It is black in
J color and marked in gold ink. This superior closed cell insulation is designed to retard heat flow
K and prevent condensation when properly installed. FlexTherm® Seam-Seal pipe insulation is pre-
L slit with a factory applied specially formulated bonding adhesive applied to both seam surfaces
M and comes with convenient built-in release liners which allow for easy installation. It is available
N in wall thicknesses of 3/8” through 1” and in sizes ranging from 3/8” to 4” IPS. It is non-porous,
O non-fibrous and resists mold growth.
P
Q Applications
R
FlexTherm® Seam-Seal has the same excellent insulation properties as standard FlexTherm®
pipe insulation and is used on similar applications such as hot and cold water plumbing and roof
top drains. FlexTherm® Seam-Seal is recommended for applications ranging from -40°F to 200°F (-40°C to 93°C) for both new and
existing applications. For best results, store and install FlexTherm® Seam-Seal at temperatures above 40°F (4°C).

FlexTherm® Seam-Seal’s self-seal closure system is designed to save labor costs. It greatly reduces the use of contact adhe-

sives, thus allowing for improved working conditions and compliance with OSHA requirements. FlexTherm® Seam-Seal has superior
cold weather flexibility. FlexTherm® Seam-Seal can be used with heat tracing/heat tapes.

Installation

FlexTherm® Seam-Seal is pre-slit with convenient built-in tabs for easy installation: slip on the tube, pull the tab, pinch it shut and,
apply pressure to the seams. The seam should be positioned to be on the bottom of the pipe.

All butt joints must be sealed with an approved contact adhesive. Fittings are fabricated from miter-cut tubular sections or from
FlexTherm® sheet insulation.

Outdoor Applications

FlexTherm® Seam-Seal pipe insulation is made from a UV resistant elastomeric blend. For moderate UV exposure, no additional
protective coating needed. However, for severe UV exposure (rooftop applications) or where optimum performance is required, 374
UV protective coating or approved jacketing or cladding should be used. For best appearance, two coats are recommended. For more
detailed information refer to the Application Guide.

Features and Benefits

FlexTher® Seam-Seal offers the advantage of easier handling & installation

Faster install

Ideal for straight runs

Less use of contact adhesives

Resistance to Moisture Vapor Flow

The closed-cell structure and unique formulation of FlexTherm® Seam-Seal effectively retards the flow of moisture vapor, and is con-
sidered a low transmittance vapor retarder. For most indoor applications, FlexTherm® Seam-Seal needs no additional protection.

Additional vapor barrier protection may be necessary for FlexTherm® Seam-Seal when installed on low temperature surfaces that are
exposed to continuous high humidity.

Flame and Smoke Rating

FlexTherm® Seam-Seal pipe insulation in wall thicknesses of 3/8” (10 mm) through 1-1/2” (38 mm) has a flame spread rating of 25
or less and a smoke development rating of 50 or less as tested by ASTM E 84 Method of Testing entitled: “Surface Burning Charac-
teristics of Building Materials.”

Numerical flammability ratings alone may not define the performance of products under actual fire conditions. They are provided only
for use in the selection of products to meet limits specified, when compared to a known standard.

Product # Mfg. # Size Wall Thickness
12CT 3/8” x 6’ 1/2”
520050 58CT 1/2” X 6’ 1/2”
520053 78CT 3/4” x 6’ 1/2”
520055 118CT 1” X 6” 1/2”
520057 138CT 1-1/4” X 6’ 1/2”
520059 158CT 1-1/2” X6’ 1/2”
520060 218CT 1/2”
520062 2” X 6’

August 31, 2009