Redbac High Temperature Trowelable Adhesive (K-031)

PASTE CONSISTENCY, 350°F (177°C) SERVICE TEMPERATURE, EPOXY SYSTEM

Redbac HT Trowelable adhesive is a two-component, V.O.C. and BGE free epoxy system for bonding similar and dissimilar materials designed for use in high temperature applications.

TYPICAL CHARACTERISTICS
CONSISTENCY Smooth,
Non-Sag Paste		  
DENSITY, lb/gal (g/cm3 12.8 (1.53) ASTM D 792
WORKING TIME1 @ 77°F (25°C), min 35  
GEL TIME @ 77°F (25°C), min 120 ASTM D 2471
CURE SCHEDULE2 4-6 h @ 77°F (25°C)
+2-6 h @ operating temperature		  
MAXIMUM SERVICE TEMPERATURE, °F (°C) 350 (177)  
MIX RATIO, pbw or pbv 4/1  
TYPICAL CHARACTERISTICS:
HARDNESS, Shore D 86 ASTM D 2240
ADHESION to concrete, psi (MPa) >800 (5.5) (100% failure in concrete  
COMPRESSIVE STRENGTH, psi (MPa) 11,200 (77.2) ASTM D 695
TENSILE STRENGTH, psi (MPa) 7,900 (54.5) ASTM D 638
ELONGATION @ BREAK, % 4.8 ASTM D 638

KIT SIZES

25 lb. = 444 in.3 (7,276 cm3)
70 lb. = 1145 in.3 (18,763 cm3)

MIXING

Use K-031 in the easy to use, pre-measured kits to avoid proportioning material. If a kit must be divided, accurately measure out the required amount of resin and hardener. DO NOT ATTEMPT TO “EYEBALL” THE AMOUNT NEEDED. Use a scale to weigh out each component or use measuring cups to measure by volume. Adding more or less hardener will only degrade the physical properties.

After the components have been measured out onto a clean, flat mixing board, mix thoroughly with a trowel until the mixture becomes uniform in color (about 2 minutes).

When mixing the largest kits, a mixing paddle and heavy-duty slow speed drill may be used. However the mechanical energy put into the mix by the drill may result in shortened working life and a lessening of the non-sag characteristics of the adhesive.

Incomplete mixing will result in inadequate cure, loss of physical properties, “soft spots”, and reduced adhesion.

CONCRETE PREPARATION

Remove all oil, grease, or contaminated concrete. Chip the surface down to sound aggregate. The concrete must be dry and have no standing water. Acid etching surface preparation procedures may result in poor bond and should be avoided. Do not prime or seal concrete surfaces.

PREPARATION OF METAL SURFACES

Metal surfaces should be sand blasted to a “white metal” condition. If it is impossible to apply K-031 HT TROWELABLE ADHESIVE within 24 hours of sand blasting, the surfaces should be primed with COPPS K-040 PRIMER. Do not use porch and deck enamel or red-lead primer.

CLEAN-UP

Uncured HIGH TEMPERATURE TROWELABLE ADHESIVE can be removed from tools and equipment with non-flammable COPPS ENVIRO KLEEN or isopropyl alcohol.

SAFETY PRECAUTIONS

Avoid breathing of vapors. Forced local exhaust is recommended to effectively minimize exposure. NIOSH approved, organic vapor respirators and forced exhaust are recommended in confined areas, or when conditions (such as heated polymers, sanding) may cause high vapor concentrations. DO NOT WELD ON, BURN OR TORCH NEAR OR ON, ANY EPOXY MATERIAL. HAZARDOUS VAPOR IS RELEASED WHEN AN EPOXY IS BURNED. Avoid skin or eye contact. Wash skin with soap and water if contact occurs. If eye contact occurs flush with water for 15 minutes and obtain medical attention. Read and understand all cautions on can labels and material safety data sheets before using this material.

WARRANTY AND DISCLAIMER

Copps Industries, Inc. gives no warranty, express or implied, and all products are sold upon condition that purchasers will make their own tests to determine the quality and suitability of the product. Copps Industries, Inc. shall be in no way responsible for the proper use and service of the product. The information given in this publication is considered to be accurate and reliable and is provided as a service only. Physical properties shown are typical. Actual properties are dependent on curing conditions and degree of cure. Any information or suggestions given are without warranty of any kind and purchasers are solely responsible for any loss arising from the use of such information or suggestions. No information or suggestions given by us shall be deemed to be a recommendation to use any product in conflict with any existing patent rights.

1 - The working time (the time you have to apply the adhesive before it sets) will vary according to the temperature of the adhesive and the surfaces being bonded.

2 - Ultimate final cure is obtained by a heated post cure of 2-6 h at 200°-300 °F (93°-149°C) after initial room temperature cure.

TB#4031 (09/23/08)