Technical Notes & Studies Technical Notes Catalyst Masterbatches Minimum dosage levels for KAFRIT NA PEX compounds Cold Expansion Fittings Use with tubing made from KAFRIT NA PEX compounds Gas Fading Color change of products made with white catalyst masterbatches Light Stabilization Protection of silane cross-linkable PEX tubing materials Material Conditioning Recommendations for KAFRIT NA PEX catalyst and graft compounds Metal Deactivation Protection of silane cross-linkable PEX tubing materials