Grinding process common failure analysis--shrink coating and gel

(1) Failure phenomenon The storage time of the polishing oil is too long, and it has exceeded the shelf life, and gradually cross-linked thickening and gelation have occurred;

Poor or poor sealing, especially high temperature; light transmission during the storage of the varnish; excess of UV and varnish initiators and adhesion promoters; excessive loading of inorganic silicon and crosslinkers; The resin in the system is not properly combined.

(2) Solution Replace the varnish within the shelf life; seal the top cover or use it with the cover, or store the varnish with a small humidity and dry (temperature 25 ~ C soil 3 ~ C) ventilation warehouse, Intrusion of water-repellent molecules leads to thickening or thickening of varnish; storage of opaque warehouses for storage of varnish; and UV varnish to control the amount of photoinitiator, caution in the use of cross-linking adhesion promoters; incomplete Gel, you can filter after adding some of the diluent; add Tianyang Chemical Factory 1-3% TM-3 coupling agent, while the water-based varnish can be added natural anti-friction agent 5% -20%.