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KUOXUAN adhesive laboratory and coating technology
Coating technology

Fifty years of putting a coating on something and making it stay

We are not re-sellers. We operate coating lines, a formulation laboratory and a full QC bench — which means we can put a functional coating on almost any web you bring us: paper, PET, PVC, BOPP, PE, aluminium foil, fabric or a film nobody has labelled before.

1080 mm web 180 m/min Gravure · Slot-die · Mayer bar In-house formulation
01 · Facestock coating

Almost any web can be given a printable, coatable surface

The facestock carries the print and takes the abuse. Over five decades we have coated paper, film and foil substrates for printing, industrial and high-tech applications — and we still develop new ones with customers who cannot find what they need on the market.

Facestock coating line — gravure heads and drying oven
IN LINE

One of our facestock coating lines

Unwinder, coating heads, multi-zone drying oven and online gauging — the same line coats PET, PVC, BOPP, PE and paper webs.

PET Film

23–100 μm. Dimensional stability, heat resistance to 150 °C, chemical and solvent resistance. Clear, white, matt silver, gloss silver and metallised grades for nameplates, electronics, battery and under-hood labels.

  • Top-coated for UV inkjet, Indigo and thermal transfer
  • UL-recognised constructions available on request

PVC Film

Conformable and soft — the classic choice for curved, squeezable and irregular surfaces. Excellent opacity, outdoor durability and print holdout for promotional, warning and appliance labels.

  • Conforms to compound curves without lifting
  • Plasticiser-resistant adhesive pairing

BOPP Film

The workhorse film. Low density, high yield, good stiffness for dispensing, and excellent clarity for no-label-look cosmetics and beverage labelling.

  • Clear, white, pearlised and metallised
  • Machine-direction stability for high-speed application

PE Film

Soft and stretchable, follows squeeze bottles and tubes. Good moisture barrier and low-temperature performance for personal care, food and chilled products.

  • HDPE / LDPE blends tuned to squeeze ratio
  • Compatible with removable and freezer adhesives

Paper & board

Cast coated, semi-glossy, woodfree, thermal and direct thermal papers from 60 to 160 gsm — plus kraft, fluorescent, metallic and holographic specialities. We also coat and export base paper on its own.

  • FSC-certified sources available
  • Base paper and liner paper exported in reels and sheets

Beyond labelstock

Because the capability is coating, not just labels, we also coat functional webs: release liners, protective films, thermal coatings, barrier primers and conductive or anti-static surfaces for electronics and industrial customers.

  • Bring us a substrate — we will trial coat it
  • Pilot runs from a few hundred metres
02 · Adhesive systems

Formulated in our own laboratory, not bought by the drum

Adhesive is where labels fail. We formulate water-based acrylic, hot-melt, solvent and rubber systems in-house, and tune tack, shear, peel and low-temperature performance to the substrate and climate you actually ship to.

Adhesive formulation laboratory at KUOXUAN
IN HOUSE

The laboratory where the formulas are born

Tack, shear, peel and climate tests run here before a new formula ever touches the production coater.

Permanent

Water-based acrylic and hot-melt for general purpose. High initial tack, excellent die-cutting, stable on high-speed applicators, and age-resistant so the bond strengthens rather than dries out.

Removable / repositionable In demand

Peel off cleanly and re-stick many times without leaving residue. Used for retail promotions, window stickers, books, planning boards, and hardware asset tags that must come off when equipment is redeployed.

  • Re-stickable over months, not days
  • No adhesive transfer on glass, metal or painted surfaces
  • Release force graded light / medium / strong

Freezer & cryogenic

Stays wet-tacky at −40 °C and applies to frost-covered or condensation-wet surfaces. Built for seafood, frozen food, cold-chain pharma and ice-cream packaging.

High-tack / rough surface

Aggressive wet-out for corrugated board, low-energy plastics, tyres and rough wood — the surfaces where ordinary permanent adhesive gives up at the corners.

Heat & chemical resistant

Cross-linked systems for under-hood, engine bay, battery pack and industrial nameplates that see oil, fuel, solvents and sustained heat.

Special purpose

Ultra-destructible, anti-plasticiser, low-migration for food contact, and wash-off adhesives for returnable bottles — developed case by case with the customer.

03 · Liner, release & paper export

The liner is the quiet half of the product

Release force decides whether your applicator runs at 120 m/min or stops every ten minutes. We grade it deliberately — and we supply the paper itself, not only the label material.

White glassine release liner close-up
GLASSINE

Glassine, kraft and PET liners — slit, sheeted and exported

Release liner is coated, super-calendered and graded in-house so your die-cutting and dispensing never fight the liner.

Liner range

  • White and yellow glassine, 40 / 55 / 60 / 80 gsm
  • Super-calendered kraft (SCK) and clay-coated kraft (CCK)
  • PET film liner for ultra-smooth die-cutting and high-speed dispensing
  • Release force graded and matched to your applicator and speed

Paper & sheet export

  • Self-adhesive sheet paper: A4, A3, SRA3, 50 × 70 cm and custom formats
  • Multiple basis weights in stock — 70 / 80 / 95 / 100 / 120 / 140 / 160 gsm
  • Ream-wrapped with moisture barrier, palletised for sea freight
  • Base paper, liner paper and release base exported in reels
04 · Process capability

From raw web to export pallet, under one roof

Every step is in-house, so a question about a roll can be traced back to the shift, the batch and the test record.

High-speed adhesive coating line in production
01

High-speed coating

1080 mm wide, 180 m/min, multi-zone drying, gravure / slot-die / Mayer bar heads and online coating-weight monitoring.

Operator slitting and rewinding self-adhesive rolls
02

Slitting & rewinding

Shear, razor and score cutting with constant tension control; splice counting and length tolerance recorded per roll.

Sheeting line cutting self-adhesive material
03

Sheeting & converting

Rotary sheeting to A4/A3/custom, precision jogging, ream wrapping and edge protection for long sea voyages.

Stacked sheets packed for export
04

Packing & palletising

Shrink wrapping, strapping, corner boards, fumigated pallets and photographed container loading before departure.

KUOXUAN warehouse — stretch-wrapped jumbo rolls and palletised stock ready for container loading
05 · Quality control

Five independent tests, one release decision

Calibrated instruments, documented methods, retained samples for the life of the batch. Test reports can be issued with every shipment, and third-party inspection can be arranged.

Rolling ball initial tack test
Initial tackRolling ball method, J. Dow / PSTC equivalent
Shear holding power test bank
Holding powerShear resistance under load, hours to failure
180 degree peel adhesion test
Peel adhesion180° peel at controlled speed and dwell time
Constant temperature humidity ageing chamber
Ageing & climateConstant temperature / humidity cycling and oven ageing
Digital microscope coating inspection
Coating inspectionDigital microscope, coating weight and surface defect check

Incoming inspection

Every incoming web is checked for basis weight, thickness, surface energy and defects before it reaches a coating head.

In-process control

Coating weight, drying temperature and line speed logged continuously; any excursion is flagged against the roll ID.

Finished testing

Tack, shear, peel, release force and print test on every batch before release for slitting or sheeting.

Retained samples

A retained sample of every batch is stored for its full service life, so a claim two years later still has an answer.

06 · What is coming next

Our development pipeline — published on purpose

Most suppliers keep R&D quiet. We publish the roadmap, because a customer who can see the next two years of development is a customer who trusts the factory. This page is updated as each project reaches pilot or production.

Release roadmap

In pilot · 2026 H1

High-tack removable — re-stick 50+ times

A removable adhesive that keeps its re-stickability after fifty applications and still leaves no residue on glass, painted metal or ABS. Target: retail promotion and IT asset tags.

In pilot · 2026 H2

Cryogenic labelstock for −80 °C

For vaccine and biologics logistics: applies at −20 °C and stays bonded and scannable at −80 °C through freeze-thaw cycles.

Development · 2027

Recycled-content facestock, PCR-PET and PCW paper

Post-consumer recycled PET film and post-consumer waste paper facestocks validated for print quality and die-cutting, aimed at brand-owner sustainability targets.

Development · 2027

Wash-off adhesive for returnable packaging

Bonds through the whole cold chain, then releases completely in a 65 °C caustic wash — for reusable crates, bottles and pallets.

Research · 2028

Functional coatings beyond printing

Anti-static, thermally conductive and sensor-compatible coatings for electronics, battery and AI hardware applications.

How we develop with customers

  • Brief — you describe substrate, environment, press and service life.
  • Lab trial — 2–4 candidate formulations coated on a pilot coater.
  • Sample validation — you test on your own line; we test in our lab.
  • Pilot run — a few hundred metres produced on the production line.
  • Scale-up — full-width production with a documented specification locked in.

Want to co-develop a construction? We sign NDA routinely and will reserve pilot capacity for a committed partner.

Discuss a development project Download TDS
Further reading

Go deeper on the material side

Long-form technical notes written by our coating and QC teams — no brochure copy.

The guides linked below are written in English.

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