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Q: What are the main challenges when developing UV coatings for PVC and SPC flooring?

A: PVC and SPC flooring coatings usually need to balance several requirements at the same time. A matte finish may be required for appearance and surface feel, while the coating must also provide resistance to stains, scratches, and daily wear. At the same time, flooring production is highly cost-sensitive, so the formulation needs to achieve the required performance without unnecessarily increasing raw material costs.

For this reason, UV coating material selection should start with the required flooring performance rather than choosing a resin based on a single property.

Q: Which UV resin can be considered when cost is a major concern?

A: Modified epoxy UV resins such as L-6112C, L-6117, and L-6118 are positioned as cost-effective options for UV wood coatings and PVC/SPC flooring applications. They can be considered when controlling formulation cost is an important part of the development target.

However, cost should be evaluated together with curing, adhesion, hardness, flexibility, surface appearance, and durability. A lower resin price does not necessarily mean a lower total formulation cost if additional additives or processing adjustments are required.

Q: How can I achieve a matte finish more easily in a UV flooring coating?

A: Matting performance depends on the interaction between the UV resin, matting powder, additives, film formation, and curing conditions. Using a resin designed to support matting can simplify formulation development.

For example, L-6318 and L-6360 are three-functional easy-matting UV resins positioned for easy matting and cost control. They can be evaluated for matte UV coatings where both appearance and formulation economics are important.

For applications requiring additional durability, L-6904, a nine-functional easy-matting UV resin, is positioned for anti-stain and wear resistance as well as easy matting.

Q: What materials can improve stain and scratch resistance?

A: Resin selection is one option, but surface-protection materials can also play an important role.

L-6905A Anti-Graffiti UV Resin is positioned as an anti-stain and cost-effective resin for coatings where resistance to marking and staining is required.

Another option is Lencolo 5012 High Solid Content Wax Slurry, which is positioned for anti-stain and scratch-resistant performance. It can be considered when additional surface protection is needed in flooring topcoats.

For further surface modification, Lencolo 3007D, a fluorine-modified anti-stain additive, is positioned to provide slipperiness and weather resistance.

Q: Do wetting and rheology additives matter in matte PVC/SPC coatings?

A: Yes. Matting powders and other solid particles need good distribution throughout the coating. Poor wetting can lead to uneven gloss, unstable matting, or surface defects.

Lencolo 1108 and 1109 are wetting dispersants positioned for good wettability of matte powder. They can be evaluated when the formulation contains matting agents and requires more consistent powder distribution.

For application control, Lencolo 8910 is an anti-sagging rheology additive positioned to improve anti-sagging performance, which may be relevant for coatings applied to textured or vertical surfaces.

Q: Should I select one resin or build a complete material system?

A: A complete formulation approach is usually more practical. UV flooring coatings may involve UV resins, reactive monomers, photoinitiators, matting powders, wetting dispersants, wax slurries, and surface additives. Each component affects the final balance of curing, appearance, adhesion, flexibility, hardness, stain resistance, and wear resistance.

For this reason, Lencolo’s PVC/SPC flooring material range can be used as a starting point for different formulation objectives: L-6318/L-6360 for easy matting and cost control, L-6904 for easy matting with anti-stain and wear resistance, L-6905A for anti-stain performance, and Lencolo 5012 for additional scratch and stain protection.

Q: How should these materials be evaluated before production?

A: Laboratory testing should reproduce the actual flooring substrate and coating process as closely as possible. Important evaluations include gloss and matting level, stain resistance, scratch and abrasion resistance, adhesion, hardness, flexibility, curing, surface appearance, and long-term stability.

The key is to match the UV coating system to the specific PVC or SPC flooring construction and production process. Lencolo’s resin and additive portfolio provides different starting points, but final material selection should always be confirmed through formulation and application testing.

https://www.lencolo37.com/
Guangdong Lencolo New Material Co., Ltd.

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