Abrasion Resistance

Taber abraser applied at 60 rpm on sample surface (100x100 mm.), Insignificant reduction of sample weight.

Burning Resistance

Sample is placed in oven at 70 °c for 24 hours, No cracks.

Steam Resistance

Sample surface exposed for 1 hour to steam, Slightly change in gloss/color.

Acid Test

Sample surface exposed to 0.2 N & 4 N Hydrochloric acid respectively for 15 minutes and 24 hours testing, Slightly change n gloss/color.

Cracking Resistance

Sample is placed in oven at 70 °c for 24 hours, No cracks.

Dry Heat Resistance

A vessel containing oil at 180 °c placed on sample surface, Slightly change in gloss/color.

Stain Resistance

Sample surface exposed to various staining materials for 16 hours. Staining materials: coffee, tea, soy sauce, acetone, etc., No visible change.

Porosity

Graphite laid on sample surface, No graphite stain observed with naked eyes.