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As an EVA Wrapping Hot Melt Adhesive manufacturer, Hangzhou Yihe New Materials Co., Ltd. supplies solvent-free ethylene vinyl acetate hot melts that bond veneer, CPL and decorative surfacing to MDF, particleboard and HDF profiles and panels. The adhesive goes onto the substrate molten and sets as it cools, so the wrapping line needs no drying tunnel and the finished surface stays dry.
We have formulated adhesives since 1997 from our plant beside the Fuchun River in Tonglu, Hangzhou, and our wrapping, laminating and vacuum forming products have run in furniture, door and panel plants for 29 years. That production history shapes every quotation: melt temperature, coat weight and set speed are matched to the melter, applicator and line speed on your floor rather than to a catalogue average.
The EVA wrapping range and its position in the portfolio
LM8705 Hot Melt Adhesive for Veneer and CPL Coating is the product this family is built around. It is a 100 percent solids EVA hot melt developed for bonding wood-based substrates to veneer and CPL (continuous pressure laminate) on flat lamination and profile wrapping equipment.
- No carrier to evaporate. The bond is 100 percent solids, so there is no water or solvent load to drive off between the applicator and the press roll.
- Rapid set on cooling. Short setting behaviour supports compressed production cycles and short cooling sections on high-throughput wrapping lines.
- Thermal stability. The vinyl acetate fraction in the copolymer and the crystalline structure formed on cooling hold the bond together in warm service conditions.
- Woodworking focus. Formulated for MDF, HDF, particleboard and similar fibre boards used in furniture, door and interior fit-out manufacturing.
Application fit across wrapping and coating operations
Profile wrapping
MDF and particleboard profiles for skirting, door casings, window linings, furniture edges and decorative trims are wrapped with veneer or CPL while the adhesive is still open. EVA hot melt suits these lines because the open time can be held steady by the melter and applicator temperature rather than by workshop humidity.
Veneer and CPL coating on flat panels
On panel lines the adhesive is laid down as a thin, even film before the veneer or CPL is nipped onto a calibrated board. Controlled coat weight is what protects the finished face: too much adhesive and the joint shows through thin veneer, too little and the edges lift after trimming.
The same family serves door skins, cabinet components and shop-fitting panels where a dry, solvent-free bond is preferred over a water-based system that would need a drying tunnel.
Workpiece and wrap material considerations
Bond quality in wrapping is decided before the adhesive reaches the roll. Board calibration, dust extraction at the profile brush, and a substrate surface free of release agents matter more than most temperature settings.
- Substrate: grade, density and thickness of the MDF, HDF or particleboard, plus the machined profile geometry and any radius that has to be wrapped without bridging.
- Surfacing material: veneer species and thickness, or CPL grade and backing, since these set the coat weight and the pressure the nip can apply.
- Surface condition: board moisture content consistent with your normal machining practice, board temperature close to workshop temperature, and no residual dust on the bonding face.
- Environment: workshop temperature and air movement around the cooling section, which influence how quickly the bond reaches handling strength.
Bonding route selection
The table below maps the wrapping and coating routes we supply against the surfacing materials and line configurations they normally run on.
| Bonding route | Surfacing material | Lima series | Typical line configuration |
|---|---|---|---|
| EVA hot melt profile wrapping | Veneer or CPL on machined MDF and particleboard profiles | EVA Wrapping Hot Melt Adhesive, LM8705 | Hot melt melter, heated hose, roller or slot-die applicator, pressure roll, air cooling |
| EVA hot melt flat coating | Veneer or CPL sheet on calibrated panels and door skins | EVA Wrapping Hot Melt Adhesive, LM8705 | Roller coater with metered film, nip roll, flat cooling section |
| Reactive PUR wrapping | Veneer, CPL and film where a crosslinked bond is required | PUR Wrapping Hot Melt Adhesive | Moisture-controlled PUR melter, heated hose, roller applicator, humidity-managed curing area |
| Water-based PVC wrapping | PVC film on MDF profiles and panels | Profile Wrapping Adhesives | Roller coater, drying tunnel, laminating roll, trimming station |
Critical specifications we fix with you
Hot melt selection is a working-point decision. We agree the following values against your line before a trial order is packed, and they become the reference on the batch certificate.
- Application window: the melt temperature range in the tank and at the applicator head that keeps viscosity stable through a shift.
- Coat weight: grams per square metre that suit the veneer or CPL grade, expressed as a band rather than a single figure.
- Open and set behaviour: the time available between application and the pressure roll, matched to line speed.
- Heat resistance: the service temperature the finished wrapped part must survive without edge lift.
- Appearance: glue-line visibility through thin veneer and the extent of squeeze-out accepted at the profile edge.
Melter, applicator and line integration
An EVA hot melt only performs as well as the hardware delivering it. We work from your melter model, hose length, applicator type and temperature zoning so the adhesive arrives at the substrate at the agreed viscosity, and we review the pressure roll setting and cooling arrangement at the same time.
Where a line is being commissioned or a product changed, our technical team supports start-up runs so that coat weight, line speed and roll pressure are balanced together instead of one at a time. Auxiliary items such as applicator rolls, filters and extraction at the melter are reviewed with the same attention as the adhesive itself.
Quality assurance, acceptance testing and compliance
Hangzhou Yihe New Materials Co., Ltd. holds National High-Tech Enterprise qualification and operates ISO 9001 quality and ISO 14001 environmental management systems, supported by our own laboratory and independent R and D capability. Raw material intake, melt blending and finished product checks are carried out against the agreed specification, and a retained sample is kept from each production batch.
- Incoming confirmation: batch certificate stating the properties agreed for your working point.
- Trial acceptance: bond strength and fibre tear on the actual substrate, edge and corner integrity after trimming, and surface appearance under the specified veneer or CPL.
- Heat check: wrapped samples held at the agreed service temperature to confirm no edge lift or blistering.
- Run stability: a production-length run confirming the adhesive behaves consistently from the first metre to the last.
Information We Use to Configure Your Solution
We prepare the grade, packaging and trial plan from the following inputs. Where a value is not yet fixed, we start from your current adhesive and adjust from the trial results.
- Substrate type, density and thickness; profile drawing or panel size.
- Surfacing material: veneer species and thickness, or CPL grade and backing.
- Line data: melter model, applicator type, hose length, temperature range, line speed and cooling arrangement.
- Target coat weight and any current bond or appearance defect being corrected.
- Finished-part requirements: service temperature, handling time after wrapping, trimming and packing method.
- Order profile: trial quantity, production volume, call-off schedule, packaging format and destination.
Packaging, delivery and ongoing support
Packaging format and net weight are agreed at order stage so the delivered form suits your melter feed, storage and handling, with batch labelling that keeps traceability intact through the warehouse. Delivery scope, documentation and labelling requirements are confirmed in the quotation, and the same technical contact stays with the account after the first shipment.
Frequently asked questions
What is EVA wrapping hot melt adhesive used for?
It bonds decorative surfacing to wood-based substrates on wrapping and coating lines — veneer and CPL onto MDF, HDF and particleboard profiles, panels and door components. The adhesive is applied molten and sets on cooling, so no drying stage is required.
Does LM8705 work for both veneer and CPL?
Yes. LM8705 Hot Melt Adhesive for Veneer and CPL Coating is the grade in this family for veneer and CPL coating on fibre-board substrates. Coat weight and application temperature are set separately for each surfacing material because veneer and CPL behave differently under the pressure roll.
How do I choose between EVA and PUR for wrapping?
EVA hot melt is the simpler route: one-component, no moisture curing, no reactive handling, and well suited to veneer and CPL on interior woodworking products. Reactive PUR wrapping adhesives are the alternative where the joint must be crosslinked and the process can support moisture management. We supply both and recommend on the basis of the finished part, not the adhesive alone.
What happens if the bond shows through thin veneer?
Show-through is normally a coat weight and pressure issue rather than a polymer issue. We review film thickness, nip pressure and board temperature together, and adjust the application window so the adhesive film stays even across the profile.
What do you need from me to prepare a quotation?
Substrate and surfacing material details, your line speed and melter or applicator setup, the finished-part requirement, and your trial and production volumes. With those we can propose a grade, a packaging format and a trial plan with the acceptance checks defined in advance.
