HD-SR200

■Features：

Room temperature cure or rapid hot cure.

Addition cure, no byproduct,

Low shrinkage.

Excellent dielectrically property.

■Applications:

Encapsulation for

LED back light

LED hard article light

Sensors

Instrument panel

■Processing

Prime coat was used to improve adhesive to the lids. And then the two components should be thoroughly mixed using a weight or volume ratio of 1:1. Vacuum de-air is recommended to get better transparency. Pour the mixture onto the container directly, avoid air entrapment. The catalysed material would cure to a flexible rubber within 8 hours at room temperature and then the mould can be removed. If the work temperature is significantly low, the cure time would be longer. Heat accelerating the cure is possible.

■Inhibition of cure

All addition-cured silicone elastomers are suspect to cure inhibition when contact with certain materials and chemicals. Inhibition has occurs if the elastomer is only partly cured after 24 hours or has a sticky surface in contact with another material. Amines and sulphur-containing materials are strong inhibitors, as are organ tin salts used in condensation cure silicone elastomers.

■Packaging

Base A: 25kg/barrel, Curing agent B: 25kg/barrel

■Usable life and storage

Base A and curing agent B has a shelf life of 12 months from the date of manufacture.