Product Description
NBR-RIGID-DH -1 ----Silicone Resins for Rigid Mica Plate
High temperature resistant , Isolation , Climate resistant , Waterproof
Composition of NBR-RIGID-DH-1
50% polysilaxones
Recommended Mixing Proportions:
40% of NBR-RIGID-DH-1
9% of isopropyl alcohol
0.5% -- 1% of catalyst DH-1-Cyt
Mix NBR-RIGID-DH-1 with Toluene; while isopropyl alcohol is mixed with DH-1-cyt separately. Then, mix the 2 together, evenly and thoroughly for at least 30mins.
Application process:
Mixture obtained should be tested prior to mass production usage for every batch manufactured.
The mixture obtained should cure / harden in 5-20 mins at 170 ºC ± 2 ºC
E.g. A copper plate with a shallow hole, with heater below may be used for the test. However, the temperature should be maintained at 170 ºC ± 2 ºC during the test.
Having added the Catalyst DH-1-cyt, the mixture must be used within 4hrs during summer, within 6hrs during winter.
During manufacturing process, temperature should about 250 ºC . If the mica sheets separators (be it steel or fiberglass sheets) are too tightly bound together, it means that too high a pressure is used or the separators need to be recoated.
The percentage of silicones should be at 7-9% of the mica plate's weight. If the percentage is too high or too low, simply adjust usage of toluene for fine-tuning. No changes to other compositions.
Above steps are for purely recommendations, and in no way guaranteed by our company. Actual use should be adjusted to suit the manufacturing process and requirements accordingly.
Audited Supplier 
){kind=link}