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(Environmentally friendly) formaldehyde resin KC-81
Overview: This series product is a colorless to yellowish anti-yellowing aliphatic aldehydes hard resin, granule-like appearance. Applicable to solvent-based coatings, solvent-based ink, solvent-based coatings, waterborne coatings, powder coatings, a variety of resin-modified, and other areas. Its performance improved yellowing resistance film and shorten the drying time and improve the solid content to reduce VOC emissions, the price of similar foreign products offer more than 30%, in particular, is a universal colorants costs can be reduced by 50% or more of its middle and low solvent adaptation similar foreign products can not be with Bimei, product performance has reached and more than similar foreign products.

Variety and Specifications:
Form granule-like
Softening Range ℃ (DIN53180) 80-95
Iodine colorimetric DIN (6162) 3 (highest)
Acid value mgKOH / g (din53402) 3 (highest)
Hydroxyl value mgKOH / g (IS04629) 40
Glass transition temperature ℃ (DIN53765) 40
Viscosity mpa.s (DIN53015) 25-30

Features:
Excellent solubility of polar solvent
Excellent non-polar solvents
Excellent compatibility
Excellent pigment wetting
Excellent anti-yellowing


Pigment paste (Universal colorants):
KC-81 has almost universal solubility and compatibility, and has excellent pigment wetting. For this reason, so that KC-81 is very suitable as a carrier resin, pigment paste. With the appropriate dispersant can paste used in conjunction with a very high color strength and to reduce the loss in the storage process, reduce the inventory of raw materials and paste varieties and processing. Changes in paint pigments to enhance market resilience, in the shortest possible time to paint finished products into the market, compared with the cost of similar foreign products can be reduced by 30% or more. (Universal colorants KC-81 resin containing the amount of content according to different requirements could be made of 30% -60% of the liquid).

Note if they are ignoring the consequences of
Paste itself • KC-81 and the compatibility between dispersant
• solvents and compatibility between dispersant
• pigments and compatibility between dispersant
• KC-81 content of
• The amount of dispersant • scattered poor poor mobility, poor stability
• dispersed bad, poor mobility, poor stability
• dispersed bad, poor mobility, poor stability
• or affect the coating performance, or color operation
• or affect the stability, or affect the coating performance
• Stability • paint itself affect the performance of pigment paste, there irritant effect crystal, floating phenomena such as color and Flooding
Colorants and coatings • between the phase between the two adaptive
Paste is mainly dispersed in the coating agent and the solvent and resin compatibility • In the process of adding color paste, there irritant effect crystal, floating phenomena such as color and Flooding


Content of the paint:
In some coatings, KC-81 high levels of formaldehyde resin will affect the paint adhesion or flexibility, or weatherability. The general content of 5% -15%, the maximum shall not exceed 20%, if there are special requirements, you can self-regulate. 5% can also be used directly as coating, ink additive.

Application:
※ for the manufacture of automotive repair paint can increase the gloss, increase hardness, reduce drying time, its adding 2% -5%.
※ for the manufacture of alkyd resins, alkyd resins to reduce viscosity, increase hardness, increase gloss, improve the dryness. In the synthesis of the final stage of accession to KC-81-formaldehyde resin 5% -10% (according to alkyd resin solids content calculation).
※ As a modified alkyd resin, amino paint can increase the hardness and fullness. Replaced in accordance with quality requirements, no more than 20% of the alkyd resins.
※ As a nitro-modified resin coating to enhance the performance of UV to reduce yellowing, improve the solid content, improve gloss and improve coating of the benzene solvent tolerance. Usage: General could replace about 20% -30% of the nitro-fibers.
※ As alkyd / chloride resin, modified resin coating to enhance chloride resin (especially chlorine ether and chlorinated rubber) and the compatibility of alkyd resin to improve gloss coating to improve paint solids. Usage: You can replace the alkyd / alkyd paint chloride resin parts, dosage does not exceed 10% of the total resin content.
※ the preparation of hot melt road paint (and petroleum resin-based material compared to hot-melt road paint) in the substrate adhesion better, in the white varieties, titanium dioxide may be less dosage, better weather resistance. Usage: 1. KC-81 can be used alone as the base material; 2. With petroleum resin and used.
※ used in powder coating, to improve the leveling and enhance substrate adhesion. Usage: In the epoxy powder coatings, with KC-81 to replace the 5% -15% with reactive resins.