{"id":11029,"date":"2026-08-03T00:00:08","date_gmt":"2026-08-03T00:00:08","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=11029"},"modified":"2026-08-03T12:08:50","modified_gmt":"2026-08-03T12:08:50","slug":"waterborne-epoxy-clearcoat-additives","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/tr\/waterborne-epoxy-clearcoat-additives\/","title":{"rendered":"How to Choose Additives for Waterborne Epoxy Clearcoats"},"content":{"rendered":"

Waterborne epoxy clearcoats usually do not fail because buyers need more additives in general<\/em>. They fail because the wrong bottleneck gets screened first. In a transparent or semi-transparent final film, buyers normally need to separate three different jobs: crater and pullback cleanup, microbubble and pinhole cleanup, or final-surface smoothness after the film is already directionally stable.<\/p>\n

For that reason, the cleanest first-screen shortlist is often CHLUMIAG\u00ae 3467<\/strong> for compatibility-first anti-cratering and leveling cleanup, CHLUMICRYL\u00ae DF-D9904BR<\/strong> for water-based microbubble and pinhole control, and CHLUMIFE\u00ae 3166<\/strong> for smoothness, dry feel, and finish refinement once crater and bubble behavior are already under better control.<\/p>\n

Why waterborne epoxy clearcoats need their own additive screen<\/h2>\n

A broad waterborne epoxy topcoat page is still useful, but a clearcoat page answers a narrower buyer problem. In a clear or lower-pigment finish layer, visible defects usually show faster because the film hides less. That means a buyer can think they have a general “leveling” issue when the real first bottleneck is compatibility-led cratering, or think they need a stronger defoamer when the main need is surface refinement after trapped air is already under control.<\/p>\n

So this page stays focused on the final transparent or appearance-sensitive epoxy clearcoat stage, not on the broader whole-topcoat lane.<\/p>\n

Quick shortlist for waterborne epoxy clearcoats<\/h2>\n\n\n\n\n\n\n\n
Additive route<\/th>\nUse it first when<\/th>\nWhy it fits<\/th>\n<\/tr>\n<\/thead>\n
CHLUMIAG\u00ae 3467<\/strong><\/td>\nThe clearcoat still breaks, pulls back, or shows crater-like surface disruption on the substrate or previous layer.<\/td>\nCompany-supported positioning already ties 3467 to compatibility-first leveling, anti-cratering, and substrate-wetting cleanup across water-based systems.<\/td>\n<\/tr>\n
CHLUMICRYL\u00ae DF-D9904BR<\/strong><\/td>\nThe film already reaches the surface, but microbubbles, foam carry-through, or pinholes still mark the clear layer.<\/td>\nCompany-supported positioning already ties DF-D9904BR to silica-free water-based microbubble, foam, and pinhole cleanup, with the co-solvent-first high-shear incorporation note.<\/td>\n<\/tr>\n
CHLUMIFE\u00ae 3166<\/strong><\/td>\nThe clearcoat is directionally stable, but buyers still want a smoother face, cleaner dry feel, or more balanced finish handling.<\/td>\nCompany-supported positioning already ties 3166 to smoothness, dry feel, gloss-balance, and abrasion-oriented finish refinement, with watchpoints around pinholes, whitening, and foam stabilization.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

CHLUMIAG\u00ae 3467'nin ilk tercih olarak daha iyi oldu\u011fu durumlar<\/h2>\n

Choose 3467<\/strong> first when the waterborne epoxy clearcoat is still failing at the interface. Typical buyer language here is crater, fisheye, pullback, poor wet-out, or a film that never fully calms down on the underlying layer. In that situation, jumping straight to a final-feel additive can be premature because the clearcoat surface is not stable enough yet to judge finish quality honestly.<\/p>\n

3467 is the cleaner first route when the formulator wants a compatibility-first correction instead of a harder slip or wax-style intervention. That is especially useful when the buyer still wants to preserve clearer formulation flexibility while addressing visible crater-type defects first.<\/p>\n