Guangdong Haohui New Materials (Haohui) UV Oligomers, Waterborne Dispersions, Monomers and Additives

Selection and quotation of Haohui raw materials for UV curable coatings and inks: aliphatic and aromatic urethane acrylates, polyester and epoxy acrylates, waterborne UV dispersions, monomers and additives.

HP and CR Aliphatic Urethane Acrylates

Haohui aliphatic urethane acrylate oligomers for plastic, wood and metal coatings, inks and adhesives. HP6203 is easily metallized and serves vacuum plating primers, non-yellowing CR91016 is recommended for electronics and encapsulants, HP6600 is supplied in solvent.

HP6203: 40,000–60,000 mPa·s at 60 °C
CR91016: 17,000–32,000 mPa·s at 25 °C
CR91267: 80–180 mPa·s at 25 °C
HP6600 solventborne: 75±5% active content

CR and HP Aromatic Urethane Acrylates

Aromatic urethane acrylates for hard, abrasion resistant wood, plastic and vacuum metallizing topcoats. Trifunctional CR90991 cures fast, resists scratching and is easy to matt in PVC, wood and plastic coatings; HP6272 adds adhesion, leveling and flexibility.

HP6310: functionality 6
HP6310: 1,400–4,200 mPa·s at 60 °C
HP6272: 3,000–6,500 mPa·s at 60 °C
CR90991: functionality 3

MH, HT and CR Polyester Acrylates

Polyester acrylate oligomers for wood varnishes, screen and offset inks, adhesives and overprint varnishes. MH5200 combines fast cure, flexibility and low shrinkage, HT7370 keeps the ink-water balance in offset inks, HT7004 adds adhesion and water and acid resistance, CR91212 has low odor.

MH5200: 500–1,400 mPa·s at 60 °C
HT7370: 2,800–8,000 mPa·s at 60 °C
HT7004: 6,000–12,000 mPa·s at 65 °C
CR91212: acid value up to 10 mg KOH/g

Epoxy Acrylates, Matting and Adhesion Oligomers

HE421F epoxy acrylate cures fast, resists yellowing and is used on plastics, metals and wood. Self-matting urethane acrylate 0038C gives matt UV coatings on plastic, wood and paper, trifunctional phosphate acrylate HC5351 improves adhesion between coating layers.

HE421F: functionality 2
0038C: 80–550 mPa·s at 25 °C
HC5351: acid value 140–170 mg KOH/g
HC5351: 200–300 mPa·s at 25 °C

WR Waterborne UV Dispersions

Waterborne aliphatic polyurethane UV dispersions for plastic and wood coatings. High-solids WR80172 gives hardness, abrasion and water resistance, WR80038 stays flexible and adheres to soft TPU substrates, WR80099 gives a self-matting finish.

WR80172: 67±2% solids
WR80172 solids test: 2 h at 105 °C
WR80038: 38–42% active content
WR80038 storage: 4 to 50 °C

Monomers, Photoinitiators and Additives

Monofunctional monomer MR2101 (2-hydroxyethyl methacrylate) for adhesion and dilution, liquid photoinitiator HI-184L-A for surface cure, HL011 matting wax paste and HC5800 leveling agent based on an acrylic fluorocopolymer for UV coatings and inks.

MR2101: 5–20 mPa·s at 20 °C
HI-184L-A: absorption 263, 280, 335, 399 nm
HL011: 6 µm particles, 20% content
HC5800: addition 0.01–0.3%

Oligomer Functionality and Viscosity for the Coating

Oligomer functionality sets the balance between film hardness and flexibility.

Difunctional HP6203 and HP6272 are used for plastic coatings and vacuum plating primers where flexibility and adhesion matter; hexafunctional HP6310 for hard, abrasion resistant wood coatings and metallizing topcoats, solventborne HP6600 for plastic and metallizing coatings with high abrasion resistance.

Haohui datasheets give viscosity at different temperatures: HP6203, HP6310 and MH5200 at 60 °C, CR91016, CR91267 and 0038C at 25 °C, HT7004 at 65 °C, so grades are compared only at the same measuring temperature.

Oligomers for Offset, Screen and Flexo Inks

For offset inks Haohui recommends polyester acrylate HT7370: ink-water balance, pigment wetting and stability, viscosity 2,800–8,000 mPa·s at 60 °C. For screen and flexo inks and overprint varnishes the monofunctional urethane acrylate CR91267 fits: it cures fast and has a viscosity of 80–180 mPa·s at 25 °C. MH5200 is used in screen inks, wood varnishes and overprint varnishes, HT7004 and CR91212 in inks that need adhesion and low odor.

Trifunctional phosphate acrylate HC5351 is added to inks, coatings and adhesives for interlayer adhesion, low shrinkage and hardness.

Waterborne UV Dispersions: Solids, pH and Storage

Waterborne dispersions are compared by solids and pH. WR80172 has 67±2% solids (2 h at 105 °C), pH 6.0–8.0 and functionality 6 and is recommended for plastic coatings on home appliances, electronics and automotive accessories and for wood.

WR80038 and WR80099 contain 38–42% active content: WR80038 with functionality 2–3 is designed for soft TPU substrates, WR80099 with functionality 4 gives a self-matting finish at pH 7.0–9.5.

WR80038 is kept in closed containers at no lower than 4 °C and no higher than 50 °C, with a safe storage period of 6 months.

Storage, Packing and Incoming Batch Control

Haohui oligomers are packed in 50 kg plastic buckets and 200 kg steel drums and are kept in a cool dry place out of the sun at no more than 40 °C; under these conditions the shelf life is at least 6 months.

Liquid photoinitiator HI-184L-A is sensitive to sunlight and visible light: it is stored cold, dark and tightly closed, with storage stability of at least 1 year, in 25 kg buckets. HL011 matting paste in xylene is shaken thoroughly in the drum before use, shelf life at least 3 months.

The manufacturer requires every batch to be tested before production use; spills are wiped with a cloth and cleaned with ethyl acetate.

Guangdong Haohui New Materials / Haohui 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 Guangdong Haohui New Materials / Haohui and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.