Instructions / Assembly

TECHNICAL DATA SHEET

HE208 - WET PATCH® ROOF LEAK REPAIR

Last Rev Date: 08/24/2015

Physical Properties

Flash PointAppearance

Black mastic 105ºF min.

Solids By Weight

80%

FreezabilityBase

Refined asphalt Does not freeze

Specific Gravity @ 77º F (25ºC)

1.12

Maximum VOCColor

Black 300 g/l

Weight Per Gallon

9.1-9.5 lbs (ASTM D-1475)

Pliability @ 32º FConsistency @ 77º F

Soft, easily trowelable paste No cracking or separation

Approvals and Certifications

Meets or exceeds ASTM Specification D-4586, Type I and 100% wet surface adhesion as per ASTM D-3409

MIAMI-DADE COUNTY PRODUCT CONTROL APPROVED - HE208 is in compliance TAS 121 with Miami-Dade Cty

NOA #12-0725.04

Description

HE208 - WET PATCH® ROOF LEAK REPAIR stops roof leaks in all temperatures and weather conditions - even in

driving rain.

Usage

· Repair holes, cracks, and splits on composition, mineral surface cap sheet, asphalt coated, SBS modified, metal and

masonry roofs.

Seal leaks and openings around flashings, chimneys, vents, skylights, joints in metal edging, gutters, etc.

Coverage

12 1/2 sq. ft. per gallon applied 1/8" thick.

Surface Preparation

Clean dirt and loose material from surface. Remove embedded gravel and old roof cement that would interfere with a

good bond. Remove rust and scale with wire brush.

Application

1. APPLY 1/8" to 1/4" thick with a trowel or putty knife. Work into hole and spread 2" to 4" beyond, feathering the edges.

2. REINFORCE with HENRY 181 or 183 Repair Fabric if hole is over 1/4" wide or 2" long. 3. COVER repair with a

second layer of cement. For vertical surfaces in hot weather, use #204 Plastic Roof Cement or #505 FlashMaster™

Flashing Cement.

Henry Company 909 N. Sepulveda, Ste 650, El Segundo CA 90245-2754

Technical Services Phone: (800) 486-1278 - Email: techservices@henry.com

The Henry Company is the parent company of Bakor, Inc.

www.henry.com

TECH HE208

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TECHNICAL DATA SHEET HE208 - WET PATCH® ROOF LEAK REPAIR Last Rev Date: 08/24/2015 Physical Properties Appearance Black mastic Base Refined asphalt Color Black Consistency @ 77º F Soft, easily trowelable paste Flash Point 105ºF min. Freezability Does not freeze Maximum VOC 300 g/l Pliability @ 32º F No cracking or separation Solids By Weight 80% Specific Gravity @ 77º F (25ºC) 1.12 Weight Per Gallon 9.1-9.
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Precautions DO NOT THIN. Do not heat container or store at temperatures greater than 110ºF (43ºC). When transporting, make sure the pail is secured and the lid is tight to prevent spills. CLOSE AIR INTAKES ON ROOF UNTIL SOLVENTS DISSIPATE! May not yield satisfactory results over some APP torch down membranes. Contact Henry and membrane manufacturer before use. Not recommended for use over gravel, rubber or PVC sheet roofing or wood shingles.
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Limited Warranty We, the manufacturer, warrant only that this product is free of defects, since many factors which affect the results obtained from this product - such as weather, workmanship, equipment utilized and prior condition of the substrate - are all beyond our control. We will provide at no charge replacement product if the applicator proves, to our satisfaction, this product was defective within 7 years from purchase date of the product.