allnex Coating Resins, UV Curable Resins, Crosslinkers and Additives

Selection and quotation of allnex raw materials: CYMEL amino crosslinkers, EBECRYL UV resins, CRYLCOAT powder polyesters, waterborne and solventborne resins, ADDITOL additives and CYCAT catalysts.

CYMEL, SETAMINE and CYREZ Amino Crosslinkers

Melamine and urea formaldehyde resins for baking finishes combined with acrylic, polyester, alkyd and epoxy binders. CYMEL 303 LF is a highly methylated monomeric melamine, CYMEL NF 2000A a carbamate crosslinker that does not emit formaldehyde on cure. CYREZ is HMMM for rubber compounds.

CYMEL 303 LF: 98% solids
CYMEL 325: 25–35% on resin solids
CYMEL NF 2000A: formaldehyde free
CYREZ 964: 65% HMMM on silica

EBECRYL and UCECOAT UV/EB Curable Resins

Oligomers and monomers at 100% solids for coatings and inks cured by UV light or electron beam: urethane, polyester, amino and epoxy acrylates. EBECRYL 8402 is a low viscosity aliphatic urethane diacrylate for wood, plastics and exterior coatings. UCECOAT covers waterborne UV resins.

EBECRYL 15: 67% bio carbon
EBECRYL 8402: elongation at break 55%
EBECRYL 367: viscosity 1500–3500 mPa·s
UCECOAT 7177: urethane acrylate in 60% water

CRYLCOAT and UVECOAT Powder Coating Resins

CRYLCOAT polyesters for TGIC, HAA, epoxy and blocked isocyanate hardeners, UVECOAT unsaturated resins for UV powders and MODAFLOW Powder flow agents. CRYLCOAT 2618-3 is a tribo-active carboxylated polyester for Primid XL-552 with weathering resistance to GSB and Qualicoat.

CRYLCOAT 2671-3: matte pair, gloss 32–36%
CRYLCOAT 4890-0: for uretdiones
MODAFLOW Powder 6000: 0.75–1.5 phr
CRYLCOAT 2618-3: shelf life 24 months

DAOTAN, SETAQUA and RESYDROL Waterborne Resins

DAOTAN polyurethane dispersions for primers, basecoats and topcoats, SETAQUA waterborne acrylics and alkyds and RESYDROL modified alkyd emulsions for low-VOC coatings. SETAQUA 6802 is an acrylic copolymer dispersion for metallic and solid colour waterborne base coats.

SETAQUA 6802: non-volatiles 22–26%
SETAQUA 6802: particle size 180–260 nm
SETAQUA 6802: storage 0–35 °C
SETAQUA 6802: shelf life 180 days

BECKOPOX Waterborne Epoxies and Hardeners

BECKOPOX epoxy dispersions and amine hardeners and the BECKOCURE amine dispersion free of monomeric amines serve low-VOC anticorrosion primers and coatings on concrete and metal. EP 385w is an internally plasticized type 1 solid epoxy resin dispersed in water.

EP 385w: epoxy equivalent 480–520 g/mol
EP 385w: 80% of stoichiometric hardener
EH 623w: amine value 195–220 mg KOH/g
EH 623w: avoid drying above 60 °C

SETALUX, SETAL, MACRYNAL and ACURE Solventborne Resins

SETALUX acrylic resins and MACRYNAL polyols, SETAL alkyds and polyesters for two-pack and baking coatings in vehicle refinish, ACE and general industry. ACURE is a non-isocyanate two-pack system based on the Michael addition reaction.

MACRYNAL SM 510n: OH value 140–155 mg KOH/g
SETAL 1603 BA-78: 5.4% OH
SETAL 1603 BA-78: VOC 400 g/l
ACURE 510-170: CH equivalent 212 g/eq

PHENODUR Phenolic Resins and ALNOVOL Novolacs

PHENODUR resols cure epoxy binders in interior can and tube coatings, protective coatings for apparatus, vessels and pipelines and electrical insulation varnishes. ALNOVOL novolacs reinforce natural, styrene-butadiene and nitrile rubber as an alternative to resorcinol.

PHENODUR PR 612: 30–45% with epoxy
PHENODUR PR 612: 80% in butanol
ALNOVOL PN 160: 10–20 phr in rubber
ALNOVOL with HMMM: ratio 7 : 3

ADDITOL and MODAFLOW Additives, CYCAT Catalysts

ADDITOL wetting and dispersing additives, flow and leveling additives, defoamers, rheology modifiers and cobalt-free driers; MODAFLOW acrylic flow additives; CYCAT acid catalysts based on PTSA, DDBSA and DNNSA sulfonic acids for amino crosslinked systems.

CYCAT 6051: 50% DNNSA in n-butanol
CYCAT 4040: start at 0.5% on resin
MODAFLOW AQ 3025: 1–2% on resin solids
CYCAT 4040: shelf life 720 days

Amino Crosslinker and Catalyst for the Bake Schedule

CYMEL 325 and CYMEL UI-27-EI often cure without added catalyst: the acidity of the backbone polymer is sufficient at a bake of 15–20 minutes at 120–150 °C, otherwise 0.5–1.0% CYCAT on total resin solids is added.

For acid curing wood finishes dried at ambient temperature, 6–10% CYCAT 4040 is used; UI-27-EI is not suitable for exterior applications. Excess catalyst reduces the water resistance of the film, so the minimum effective level is used.

Formaldehyde-free CYMEL NF 2000A is dosed by equivalents: 1.0–1.1 equivalents of carbamate per equivalent of backbone functionality.

Oligomer, Diluent and Storage of UV Resins

The oligomer sets the cured film properties, the reactive diluent sets the viscosity: EBECRYL 4858 and 8402 are diluted with HDDA, IBOA or TMPTA instead of solvent. The EBECRYL 15 diacrylate replaces DPGDA and TPGDA and raises film flexibility.

EBECRYL 367 is added at additive levels for adhesion of inks and varnishes to plastics. UV resins are not kept above 40 °C or in sunlight for long and are not stored under an oxygen free atmosphere; EBECRYL 367 is stored for no more than 6 months, waterborne UCECOAT 7177 only above freezing.

Powder Polyester for the Hardener and Substrate

The polyester follows the hardener: carboxylated CRYLCOAT 2618-3 and 2671-3 for HAA Primid XL-552, hydroxylated CRYLCOAT 4890-0 for blocked isocyanates or uretdiones. A matte finish comes from a dry blend of CRYLCOAT 2670-3 and 2671-3 at 1 : 1.

For MDF and other heat-sensitive substrates there are low temperature cure polyesters. CRYLCOAT 2618-3 has a shelf life of 24 months; for older lots the datasheet asks to check the acid value and viscosity every year.

Two-Pack Systems: Polyol, Epoxy or ACURE

MACRYNAL SM 510n is an acrylic polyol for polyisocyanates in refinish topcoats and clearcoats, with about 4.5% hydroxyl on solid resin. SETAL 1603 BA-78 serves as a co-binder for acrylics in two-pack systems with reduced VOC.

In waterborne epoxies on BECKOPOX EP 385w, pigments and extenders are dispersed in the hardener component, and paints on EH 623w are not dried above 60 °C. ACURE combines a malonate donor resin such as ACURE 510-170 with the blocked ACURE 500 catalyst: the system contains no isocyanate.

allnex and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of allnex and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.