Intercol is a specialist in the vinyl acetate dispersion adhesive market. With a deep portfolio of Vinyl Acetate-Ethylene (VAE) and Polyvinyl Acetate (PVAc) with technical focus and “in house” specialties.
1. Core Technology Overview
The portfolio is primarily built on the polymerization of Vinyl Acetate Monomer (VAM). By introducing co-monomers, the properties of our adhesives are shifted from rigid/brittle to flexible/tacky.
| Technology | Full Name | Characteristics | Key Benefit |
| PVAc | Polyvinyl Acetate | Homopolymer; rigid, high Tg (approx. 30°C). | High strength, low cost, wood-to-wood bonding. |
| VAE | Vinyl Acetate-Ethylene | Copolymer; ethylene acts as an “internal plasticizer.” | Permanent flexibility, low VOC, adhesion to non-polar surfaces. |
| EAF | VAc-Ethylene-Acrylate | Terpolymer; adds acrylic monomers to the VAE backbone. | Enhanced tack, better “quick stick” for labels/tapes. |
| Versatate | VAc-VeoVa | Copolymer with Vinyl Versatate (e.g., VeoVa 10). | High alkali resistance and superior water resistance (hydrophobicity). |
2. The VAE Specialists
Intercol is an absolute expert of VAE technology and operates under different brands like “superjet” and “woodtack” . Ourr portfolio is heavily optimized for sustainability and “clean” chemistry (low formaldehyde, APEO-free).
Key Product Ranges
- Standard VAE ( Superjet 284 ): The “workhorses” for paper packaging and wood film lamination.
- Self-Crosslinking (VA EN series): Used when high heat resistance or D3/D4 water resistance is required in woodworking.
- Pressure Sensitive (Acrylate, VAA series): Specifically for adhesives that need to stay tacky (tapes, floor coverings).
Strengths: Intercol is a market leader in VAE applications; extremely high consistency; specialized in “High Solids” dispersions (up to 62%) which allow for faster drying speeds in industrial lines.
3. PVAC market
Intercol also services traditional paper converting markets.
Key Product Ranges for core paper & packaging
- Wide range covering VAE, PVAc, and Vinyl-Acrylics. But also Vinyl Versatate technology, which is often used in construction and high-end coatings.
- Supertack: Specialized grades for “difficult-to-bond” substrates like treated films (BOPP, PET).
- 1KD4 Emulsion Polymer Isocyanate (EPI) systems for structural wood bonding.
Intercol offers a streamlined VINNAPAS range.
4. Application Breakdown of vinyl acetate dispersions
| Application | Technology Choice | Why? |
| Paper & Packaging | VAE (superjet series / ) | Fast setting speed and “clean” (food contact) profiles. |
| Woodworking (D3/D4) | PVAc + Crosslinker or VAE-Terpolymer | Needs high water and heat resistance. |
| Floor Coverings | VAE-Acrylate (VAA) | Needs “permanent tack” and high shear resistance to prevent carpet movement. |
| Film Lamination | VAE with high Ethylene content | Ethylene provides the “bite” into plastic films (PVC/PET). |
| Automotive | VAE | Low emissions (VOC/Fogging) and good heat-aging properties. |
5. Summary: Strength vs. Weakness
General Vinyl Acetate Dispersions
- Overall Strengths: * Cost-Effective: Much cheaper than pure acrylics.
- Machinability: Excellent rheology for high-speed nozzle or roller application.
- Eco-friendly: Water-based, low odor, and usually plasticizer-free (for VAE).
- Overall Weaknesses:
- Water Sensitivity: Standard PVAc/VAE can re-emulsify if soaked in water for long periods (unless crosslinked).
- Alkali Resistance: Vinyl acetate backbones can undergo hydrolysis in very high pH environments (unlike Versatate or Acrylic-based polymers).
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