scope:

Note: Nothing in this standard supersedes applicable laws and regulations.

Note: In the event of conflict between the Korean and English language, the Korean language shall take precedence.

Material Description. This specification specifies the general requirements of sealerexpandable mastic used for body line.

Material Types. One-component regular paste adhesive which is composed of synthetic resin base and additives such as vulcanization agent and blowing agent.

Medium Strength Type: 4 ~ 8 kgf/cm² of adhesion strength

Low Strength Type: 1.5 ~ 2.5 kgf/cm² of adhesion strength

General Descriptions.

Heat-curing type, it provides perfect adhesion when baking conditions in the painting line are met.

As solvent-free type, it is free from danger of ignition.

Materials without electrical conductivity (ED-Off type) shall be used.

Materials should be good adhesion against general and galvanized steel treated with rust preventative oil. The Materials should not cause rust on the sealer-spread surface.

Materials should be easily treated, and they shall not give out hazardous odor and toxic fumes which may do damage to human bodies in case of sealer-spreading work and drying work.

Symbols. Not applicable.

Typical Applications. This specification applies to sealer-expandable mastic used for plate reinforcement, adhesion and caulk between inner panel and outer panel at hood, trunk lid and door of automobile.

Remarks. Not applicable.