Analogue of Megum 538/128 Heat Vulcanization Adhesive 829GB

Analogue of Megum 538/128 Heat Vulcanization Adhesive 829GB

Application

Analogue of Megum 538/128 Heat Vulcanization Adhesive 829GB is mainly used as double coating and post curing. It can help and promote various elastomers to attach tothe base rubber or various substrates. This product is a mixture of polymer, organic compound and mineral fillerdissolved or dispersed in organic solvent system. 829GB has excellent resistance to harsh environment andexcellent spraying process. It can be sprayed with stock solution by using appropriate process.
Used as a surface coating in conjunction with Dual Coat substrate surface treatment agent, suitable for thefollowing rubbers:
Natural rubber (NR), Natural＆butadiene rubber (NR+BR), Polyisoprene rubber (IR), Butadiene rubber (BR),Chloroprene rubber (CR), Styrene butadiene rubber (SBR), Nitrile butadiene rubber(NBR), Butyl rubber (IIR),EPDM, etc

Characteristics

It is environmentally friendly, free of heavy metals, in line with GB33372-2020, ROSH 2.0.
It has good settlement resistance.
It is suitable for vulcanized rubber
It has low viscosity, is suitable for industrial spraying.
It has good pre-drying resistance;
It has good weather resistance - heat resistance, water resistance, solvent resistance, oil resistance, saltresistance, corrosion resistance;

Typical Properties

Applying Analogue of Megum 538/128 Heat Vulcanization Adhesive 829GB

Stirring: 829GB in the long-term storage process will have some precipitation at the bottom of thecontainer, before the glue must be fully stirred, to achieve uniform mixing before use; If the gluing processis long, stir at a high speed for 3-5 minutes at an interval of 2 hours.

Dilute: According to the actual operation needs, this product can also add diluent for appropriate dilution. It is recommended to dilute the diluted product according to the amount used. The diluted product cannot be stored for a long time.
Brush coating method: no dilution is required;

Roller coating method: no dilution is required;

Dip: 100 parts of 829GB plus about 10-30 parts of diluent;

Spray method: 100 parts 829GB plus about 20-40 parts diluent.

Coating: This product can be applied by brush coating, dip coating, roll coating, spray coating and othermethods. Coating should be uniform to avoid excessive spillover.

Cover coating: Dry film thickness(DFT) 12-25μm. 20μm is recommended 20-40μm for harsh environment;

Single coating: DFT 15-25μm, 22μm is recommended. for PV- bonding above 25μm;

Drying: Drying at room temperature takes about 45-60 minutes, forced drying can shorten the drying time,recommended drying temperature is 60-80℃.

Product storage: This product should be stored in a dry environment at room temperature. Avoid prolonged exposure to high humidity and high-temperature conditions.

Cleaning: Prior to heat vulcanization, wipe away any excess treatment agent from surrounding areas using a rag soaked with xylene. Once cured, the coating cannot be removed with solvents.

Vulcanization: Optimum bonding performance is achieved when rubber and adhesive are vulcanized simultaneously. After applying the coating into the mold, rubber should be loaded promptly for vulcanization. Actual curing conditions shall be determined based on the curing requirements of the rubber used.

Packing

3.5kg/drum; 18kg/drum