Use and Care Guide

Henry
®
Company, 999 N. Sepulveda Blvd., Ste. 800 El Segundo, CA 90245
Tel: [phone] Email: [e-mail]
www.henry.com
Revision Date: 6/28/2017
TECHNICAL DATA SHEET
Henry
®
208R
®
Rubberized Wet Patch® Roof Leak Repair
Physical Property
Typical Value
Test Method
Appearance
Black thick paste
-
Base
Refined asphalt
-
Polymer Type
SBS
-
Behavior @ 140 °F (60 °C)
No blistering/sagging/sliding
ASTM D4586
Consistency @ 77 °F (25 °C)
Soft, easily trowel-able paste
ASTM D217
Underwater Adhesion
100%
ASTM D3409
Freeze Resistance
Does not freeze
-
VOC
300 g/l maximum
EPA Method 24
Flash Point
105 °F (40.6 °C)
ASTM D3278
Pliability @ 32 °F (0 °C)
No cracking or separation
ASTM D4586
Water by Weight
3% maximum
ASTM D4586
Weight per Gallon
9.7-10.7 lbs.
ASTM D1475
Approvals and Certifications
 Miami-Dade County Approved
 Meets or exceeds ASTM D3409, Standard Test Method for Adhesion of Asphalt-Roof Cement to Damp, Wet, or Underwater
Surfaces
 Meets or exceeds ASTM D4586, Standard Specification for Asphalt Roof Cement
Description
Henry® 208R® Rubberized Wet Patch® Roof Leak Repair is a premium, rubberized roof sealant for stopping leaks in all weather
conditions – even in driving rain.
Features
 Stops leaks instantly, even in standing water
 Apply from 0 °F to 120 °F (-18 °C to 49 °C)
 100% wet surface adhesion per ASTM D3409
 No blistering, sagging or sliding per ASTM D4586
 Rubberized for improved flexibility and durability
 10 year limited warranty
Product Size
11 fl. oz. cartridge, 29 fl. oz. cartridge, 1 gallon and 3.5 gallon
Usage
 Repairs holes, cracks and splits on composition, mineral surface cap sheet, asphalt coated, SBS modified, metal and
masonry roofs.
 Seals leaks and openings around flashings, chimneys, vents, skylights, joints in metal edging, gutters, etc.