DUR-A-FILLER #2
Epoxy Mastic Crack/Joint Filler

DESCRIPTION

DUR-A-FILLER #2 is a 100% solids two part "hard rubber-like" epoxy formulation designed for filling holes, cracks, expansion joints, construction joints, etc. in concrete floors. The semi-rigid cured property of Dur-A-Filler #2 will support the concrete edges of joints better than soft flexible type joint compounds. DUR-A-FILLER #2 has sufficient resilience to allow expansion of concrete floors when installed as recommended. It retains resilience at temperatures as low as 10°F. The mixture is easily poured into cracks and joints or injected by caulking gun equipment. Dur-A-Filler #2 cures tack-free overnight for light traffic, 1 – 2 days for heavy duty use.

BENEFITS
– Easy to Use Mix Ratio, 1:2
– Easy to Pour or Inject
– No Exudation on Surface
– Paintable
– Ample Working Time
– No Shrinkage
– Semi-rigid Even at Low Temperatures
– Semi-rigid to Protect Edges

TYPICAL USES
– Shrinkage Cracks
– Stress Cracks
– Holes
– Construction Joints
– Isolation Joints
– Expansion Joints

TECHNICAL INFORMATION
(See table on this screen.)

MATERIAL REQUIREMENTS FOR FILLING JOINTS
1. Fork Lift Traffic Areas – The following procedure must be used to obtain good results: A) Fill the joint slot with dry bagged sand to within 2" from the top of the floor. Do not tamp the sand. B) Fill the remaining 2" with Dur-A-Filler #2.
2. Foot Traffic Areas – Insert polyethylene backer rods into joint slots to within 1" from the top of the floor. Then fill the remaining 1" with Dur-A-Filler #2.

Dur-A-Flex, Inc. 1-800-253-3539

PACKAGING
Dur-A-Filler #2 is available in 1-1/2, 3 and 15 gallon units.

CONDITIONS FOR PROPER INSTALLATION
1. Ambient temperature should be above 50°F during installation and while curing.
2. Concrete floor and joint slots should be dry.
3. Concrete slabs should be allowed to cure 30 days before installing Dur-A-Filler #2. This waiting period is necessary due to the unpredictable shrinking characteristics of concrete while curing.
4. Joint slots must be cleaned free of all debris. Dust must be removed with an air hose or high powered vacuum.
5. SAW CUT JOINTS can be filled with a 3/16" layer of dry sand (Ottawa Flintshot blasting sand is ideal) to stop Dur-A-Filler #2 from seeping into shrinkage cracks that may have formed at the bottom while concrete was curing.
6. CONSTRUCTION JOINTS and KEYED JOINTS can be filled with dry bagged sand to within 2" from top of the floor. This will prevent seepage into cracks and voids. Do not tamp the sand.
7. MATERIAL STORAGE – For best results store Dur-A-Filler #2 at room temperature of 70°F. Higher temperatures reduce the "working time" dramatically. Lower temperatures extend the "working time" and curing period.
8. COLD FLOOR – The joints can be warmed with propane torches or weed burner type torch. Do not heat too rapidly or excessively.
9. MODIFICATION – Dur-A-Filler #2 may require "in the field" modification due to unusual conditions such as:
a. Dur-A-Filler continues to seep into cracks at the bottom of joints despite placing sand at bottom of joint.
b. Steep sloping floors.
c. Steel wheel traffic and very heavy loads on wider than usual joints.
Add dry bagged fine size sand after mixing the hardener and resin. This will increase the viscosity to stop seepage and flow on sloped floors. It will also increase the rigidity of the cured filler to provide more support for heavy loads and steel wheels. A trial batch should be tried by adding 50% sand such as Flintshot blasting sand. This mixture remains pourable, still easy to inject and it will probably solve the above mentioned problems. Flow and seepage problems can also be solved by adding No-Sag #2 Additive available from Dur-A-Flex, Inc.

LIMITATIONS AND CAUTIONS
1. Dur-A-Filler #2 should not be used at temperatures below 50°F, very slow curing will occur.
2. Dur-A-Filler #2 contains modified cycloaliphatic amines and modified epoxy resins that can irritate skin. Use of rubber gloves, eye shield and good ventilation is recommended when using this product. If skin contact occurs, wash with soap and water. If splashed in eye, open lids wide and flush with clear water for 15 minutes. Call physician for advice. KEEP OUT OF CHILDREN'S REACH. Read Material Safety Data Sheet for additional information.

Before using any Dur-A-Flex, Inc. product, be sure the Material Safety Data Sheet is read and understood.

Dur-A-Flex, Inc.
95 Goodwin St.
East Hartford, CT 06108
Phone: 860 528-9838
Toll Free: 800 253-3539
Fax: 860 528-2802
Email: info@dur-a-flex.com
Website: www.dur-a-flex.com