Search text
Raw Materials &
Quality Control
Top-tier resin systems, certified glass reinforcement, and traceable QA at every stage. Leeho also wholesales raw composite materials to Vietnamese fabricators, the same Korean-quality supply chain we build with.
FACTORY · Phu Tho · Filament Winding Machine · Up to Ø5,000 mm × 10 m
// Material Catalog
Resins · Reinforcements · Additives
Same materials we use in production, and offer for material sales.
MAT 01
Vinyl Ester Resin
Premium chemical-resistant resin for FGD, acid storage, hot wet service. Best balance of corrosion resistance and structural strength.
DERAKANE · VIPEL · SWANCOR
MAT 02
Iso-Polyester Resin
General-purpose resin for water service, low-temperature chemical storage, and structural FRP. Good cost-performance balance.
AOC · POLYNT · CRAY VALLEY
MAT 03
E-CR Glass Roving
Continuous glass roving for filament winding. E-CR (boron-free) grade gives best corrosion resistance for chemical and FGD service.
JUSHI · TAISHAN · CPIC
MAT 04
Glass Mat & Woven
Chopped strand mat (CSM 300/450/600) and woven roving (WR 600/800) for hand lay-up of fittings, heads, and reinforcement layers.
JUSHI · OWENS CORNING
MAT 05
C-Glass Surface Veil
Thin chemical-resistant veil for liner inner surface. Critical for corrosion barrier in acid/caustic service.
NITTOBO · OWENS CORNING
MAT 06
Catalysts & Additives
MEKP catalyst, cobalt accelerator, paraffin wax surface seal, fillers, pigments, and UV stabilizers for finished surface coats.
PERGAN · NUODEX · AOC
// Quality Control
4-Stage QC Workflow
From incoming inspection of every material lot to final shipment release, all under one quality system.
1
Incoming Inspection
- CoA verification
- Visual / packaging check
- Sample retention
- Lot number registration
2
In-Process
- Resin/glass ratio
- Cure exotherm
- Layup sequence witness
- Dimensional intermediate
3
Finished Product
- Hydrostatic test
- Barcol hardness
- Visual / dimensional
- UT thickness check
4
Release & Pack
- Test report bundling
- Certificate of Conformance
- Material traceability
- Protective packaging
// Test Methods
8 Standard Tests on Every Lot
Hydrostatic
1.5× design pressure for 30 min · zero leak / weep
ASTM D1599
Barcol Hardness
Surface cure verification · ≥ 35 Barcol units
ASTM D2583
Ultrasonic
Wall thickness uniformity · ±5% tolerance
ASTM E797
Visual / Dimensional
Surface finish, void, blister, dimensional accuracy
ASTM D2563
Glass Content
Burn-out test · target ratio ±3%
ASTM D2584
Acetone Sensitivity
Cure completeness · < 5% weight loss
ASTM D2583
Tensile Coupon
Lot-representative coupon · UTS / modulus
ASTM D2105
Stiffness (Pipe)
Parallel-plate compression to 5% deflection
ASTM D2412
// Material Sales
Wholesale Composite Materials
Building your own FRP equipment in Vietnam? Buy the same Korean-quality raw materials Leeho uses internally.
Same Supply Chain · Direct to You
Leeho Vina is also a wholesale distributor of composite raw materials in Vietnam. We import in bulk from premium Korean and global suppliers, then re-distribute in pail/drum/IBC quantities to local fabricators, repair shops, and engineering firms.
One-stop supply means you skip the multi-supplier import paperwork, and get the same lot quality we depend on for our own production.
Polyester ResinIso / Ortho / DCPD
Vinyl Ester Resin411 · 470 · 510
GelcoatIso / NPG / Vinyl
SMC / BMCPre-compound charge
Glass FiberRoving / Mat / Woven
Surface VeilC / E / synthetic
Catalyst & WaxMEKP / Cobalt / Paraffin
OtherFiller · Pigment · UV
Need raw materials or QC documentation?
For material orders or QA package inquiries, contact our materials desk. We ship pail and drum quantities anywhere in Vietnam.
Request Material Quote →
Need help? Contact us
