Installation Guide

The W.W. Henry Company
400 Ardex Park Drive
Aliquippa, PA 15001
[phone]
1-800-232-4832
www.wwhenry.com
Technical Data According to HENRY
Quality Standards
All data based on a mixing ratio of 2.75 parts powder to 1 part
water by volume at 70°F (21°C). Physical properties are typical
values and not specifications.
Mixing Ratio: 2 1/2 quarts (2.4 L) of water per
20 lb. (9 kg) bag
5 quarts (4.8 L) of water per 40 lb.
(18 kg) bag
For smaller batches, use 2.75 parts
powder to 1 part water
Coverage: 11.25 sq. ft. per 20 lb. (9 kg) bag at
1/4” (1.05 m
2
at 6 mm)
22.50 sq. ft. per 40 lb. (18 kg) bag
at 1/4” (2.10 m
2
at 6 mm)
Application methods and the
texture of the concrete being coated
will affect this rate.
Compressive Strength
(ASTM C109/mod –
Air cure only): 3600 psi (253 kg/cm
2
) at 28 days
Working Time: 30 minutes
Pot Life: 30 minutes
Walkable: Light foot traffic in 2 hours
Coat or Seal: Apply HENRY 625 or
HENRY 625F after 4 hours
Apply HENRY 635 after 24 hours
VOC: 0
Packaging: 20 lb. (9 kg) net weight bag
40 lb. (18 kg) net weight bag
Storage: Store in a cool, dry area.
Do not leave bags exposed to sun.
Shelf Life: 1 year, if unopened
Warranty: HENRY Standard Limited
Warranty applies.
HR-042 (10/02/2012)