Product Details
Hardener for Adhesive

Hardener for Adhesive (Similar to RC)

Item no.: TPUA-AC528

  • Key features:
    - Similar to RC
    - NCO: 6.0 ± 0.2% by weight
    - Better heat resistance
    - Enhance the bonding strength of adhesive
    - Increase the heat resistance of adhesive
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Product Introduction

After the addition of hardener for adhesive TPUA-AC528, the ready-to-use double-component adhesive should be applied within a period (pot life) which is determined not only by its content of rubber, but also by the other ingredients of the formulation (e.g. resins, antioxidants, solvents, etc.) If the adhesive is not used within this period of time, it may become increasingly difficult to apply and its viscosity increases rapidly until irreversible gelling ultimately occurs.
The almost colorless TPUA-AC528 is designed as curing agent for adhesive based on hydroxyl polyurethane, natural and synthetic rubber; owing to TPUA-AC528 has the feature of good hot-resistance, it is particularly suitable for light-color polyurethane, adhesive system. Because the solvent is ethyl acetate , TPUA-AC528 can be used in those countries where the use of methylene chlorides is restricted.
Typical Properties
Chemical composition Approx. 26% aromatic polyisocyanate in 74% ethyl acetate
Intrinsic color Almost colorless liquid
NCO content, % by weight 6.0±0.2
Solubility Soluble in various esters, ketones and aromatic solvents
Storage stability Reacts readily with moisture; for the best performance it should be kept dry and stored at temperatures betweens 5℃ and 32℃
Compatibility With Solvents
TPUA-AC528 can be diluted with anhydrous and alcohol-free ethyl acetate, dichloropropane, trichloroethylene, acetone, methyl ethyl ketone, toluene, and other similar solvents. The addition of relatively by using lager proportions of the solvents is mentioned above.
Suggested Additions
For curing adhesive of 100 parts by weight (p.b.w) based on:
Graft - Chloroprene rubber (Rubber content approx. 16%) 3-5 p.b.w. TPUA-AC528
Chloroprene rubber (Rubber content approx. 20%) 5-7 p.b.w. TPUA-AC528
Hydroxyl polyurethane (Rubber content approx. 15%) 3-5 p.b.w. TPUA-AC528
A. each 0.8kg in a standard aluminum bottle
    each 20 bottles in a standard carton
B. each 200kg in an iron drum
Notice: These values are based on the test of our present laboratory test specimens.
Taiwan PU Corporation is a professional hardener for adhesive manufacturer, hardener for adhesive producer. We supply high quality hardener for adhesive products, have an experienced technical team and offer the best price to hardener for adhesive.

Hardener for adhesive is called hardener for shoe adhesive, crosslinker for adhesive, hardener for shoe glue. If hardener for adhesive is needed, please contact us.

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