PVC UV COATINGS
Tianke UV Resins, Benefiting the Performance of PVC Coatings
Specially formulated to enhance the performance and durability of PVC UV coatings
Tianke’s UV resin is engineered to address the unique challenges of PVC surfaces while providing unmatched protection and aesthetics. With Tianke’s UV resin, your PVC UV coatings will shine like never before, setting new standards in the industry.
Suggested Formula for SPC Primer Coat (roller):
| Item NO. | Proportion（%） | Description |
| TK5208 or TK4208 | 10~15 | Difuncational Polyurethane |
| TK7601 | 10~15 | Hyperbranched Resin |
| Monomers | depended | HEMA/HDDA, etc. |
| Photoinitiators | depended | PI1173/PI184L, etc. |
| Additives | depended | Disperser/Defoamer, etc. |
| Powders | depended | Talcum Powder/Matte Powder, etc. |
Notice:
1. TK5208 and TK4208 are both difunctional polyurethane acrylate, while TK5208 is aliphatic and TK4208 is aromatic. TK4208 has better yellowing resistance and high gloss. TK5208 has better mechanical property and matte performance that compatible well with matte powder
2. The above formula is for the coatings that have no high requirements on the matt. If requires matt and low gloss (for example, ＜10°, 60°angle), TK4308A should be added into the formula, at the ratio of 10~15%.
Formulation Construction
1. Gneral requirement
The structure of the mentioned formula above is the general one for PVC coatings: difunctional/trifunctional aromatic polyurethane acrylate + high functional acrylate + matte resin (TK4308A)
Meanwhile, difunctional aliphatic urethane acrylate (TK5208, TK4208, TK4215) would be chosen accordingly, based on the requirements of gloss, detailed performance, ect.
2. Higher requirement
When high resistance to staining / Iodine Tincture / Thimble required, then we need to change the main resin in the formula. In the table on the right that shows the recommendation UV resin for different requirements.
3. Low cost formula
This is only for lowering the cost:
difunctional epoxy acrylate (TK2218) + high functional acrylate (TK7401/TK7601) [ + matte resin (TK4308A) added only when very low gloss required]
UV resin from Tianke for PVC Coatings:
| General Main Resin | TK2218 ‹more› TK5208 ‹more› TK4208 ‹more› TK4215 ‹more› |
| Matte Resin | TK4308A ‹more› TK4216 ‹more› |
| High Thimble Resistance | TK4217 ‹more› TK4303 ‹more› TK5205 ‹more› |
| High Staining Resistance | TK4902 ‹more› TK4604 ‹more› |
| High Iodine Tincture Resistance | TK4606 ‹more› |
| Good Adhesive | TK4218 ‹more› TK5206 ‹more› |
| Fast cure, high hardness | TK4601 ‹more› TK4903 ‹more› TK4901 ‹more› TK7401 ‹more› |
| Adhesive Promoter | T-201 ‹more› |
About Matte Resin
Three main features
1) Performance of matt
Usually, to get lower gloss level, customers would be suggested to mix the High oil-absorbing matting powder and low oil-absorbing matting powder to use in the formula. For example, if you want gloss of 3~5°, high oil-absorbing matting powder 5%~7% + low oil-absorbing matting powder 8%~12%.
2) Scratch resistance, but the performance of scratch resistance of the coatings film would benifits from the high-functional oligomers in the formula.
3) Odor Problem
