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High Crosslink Density Phenolic Novolac Liquid Epoxy Resin for Heavy-Duty Anticorrosive Marine & Protective Coatings NPPN-638S

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High Crosslink Density Phenolic Novolac Liquid Epoxy Resin for Heavy-Duty Anticorrosive Marine & Protective Coatings NPPN-638S

Brand Name:	DAHUA
Model Number:	NPPN-638S
MOQ:	4400 kilometers
Price:	$3.18/kilometers 4400-17599 kilometers
Packaging Details:	220kg/drum,17600kg/80drums/20pallets/20FCL
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

Guangdong, China

Certification:

ISO 9001, ROHS, REACH

CAS No.:

28064-14-4

Type:

Liquid Epoxy Resin

Main Raw Material:

Phenolic Novolac Epoxy Resin

Physical State:

Liquid

Epoxy Equivalent Weight G/eq:

160~178

Viscosity Cps/25C:

30000~50000

Gardner:

Max 4.0

Usage:

Heavy-duty Coatings, Chemical Resistant Linings

Highlight:

high crosslink density epoxy

phenolic novolac liquid resin

NPPN-638S epoxy resin

Product Description

High Crosslink Density Phenolic Novolac Liquid Epoxy Resin NPPN-638S

1, General Description

NPPN-638S represents a breakthrough in multifunctional epoxy resin technology with high epoxy functionality per molecule. This liquid phenolic novolac epoxy resin has an epoxy equivalent weight of 160-178 g/eq, enabling an exceptionally dense crosslinked network upon curing. The significantly higher reactive site density compared to conventional BPA-based epoxies translates to dramatically improved solvent resistance, reduced moisture absorption, and superior mechanical integrity in aggressive chemical environments. NPPN-638S is formulated for the most demanding industrial coating applications where standard epoxy systems fail prematurely, and its liquid physical state facilitates easy processing with conventional mixing equipment.

2, Chemical Composition:

Phenolic novolac epoxy resin

3, Sale Specification & Typical Properties:

Quality	Unit	Range
Viscosity	cps/25℃	30000~50000
Physical State	-	Liquid
Epoxy Equivalent Weight	g/eq	160-178
Color	Gardner	Max 4.0

4, Application:

NPPN-638S is engineered for extreme-duty protective coating applications:
1. Chemical plant tank linings for concentrated acids and caustic solutions.
2. Marine and offshore coatings achieving 5000+ hours salt spray resistance (ASTM B117).
3. Secondary containment flooring in pharmaceutical and semiconductor facilities.
4. Pipeline internal coatings for sour gas (H2S) and CO2 environments.
5. Filament-wound FRP pipes for corrosive fluid transport.
6. Heavy-duty industrial maintenance coatings for coastal and chemical plant steel structures.

7. Solvent-based anticorrosive paint systems using xylene as carrier.
8. General marine and offshore protective coating formulations.
9. Wholesale bulk supply direct from China manufacturer. 5, Storage properties:

At least 12 months in sealed containers at ambient temperature.

6, Handing precautions:

Product may cause skin and eye irritation. In cases of skin contact wash immediately with soap and water. For eyes, flush with plenty of water for 15 minutes and seek medical attention immediately.

7, Packaging

220kg/drum,17600kg/ 80 drums/ 20pallet, 17,600kg/20Fcl

9, FAQ

Q: How does NPPN-638S compare to standard BPA epoxy?
A: It delivers approximately 300% better chemical resistance thanks to high epoxy functionality, creating a far denser network that effectively blocks solvent penetration.

Q: Is ambient curing possible with NPPN-638S?
A: Yes, with modified cycloaliphatic amine or phenalkamine hardeners. Elevated temperature post-cure is recommended for maximum chemical resistance.

Q: What certifications apply to NPPN-638S?
A: Manufactured under ISO 9001 certified quality management system and complies with ROHS and REACH regulations.

Payment & Shipping Terms

Minimum Order Quantity

4400 kilometers

Price

$3.18/kilometers 4400-17599 kilometers

Tags:

Liquid Epoxy Resin

Epoxy Curing Agent

Solid Epoxy Resin

Fumed Silica

Defoamer Additive

Dispersant Additive

Wetting Agent

Silicone Leveling Agent

Special Additives

Liquid Epoxy Resin

Epoxy Curing Agent

Solid Epoxy Resin

Fumed Silica

Defoamer Additive

Dispersant Additive

Wetting Agent

Silicone Leveling Agent

Special Additives

products details

Liquid Epoxy Resin

Epoxy Curing Agent

Solid Epoxy Resin

Fumed Silica

Defoamer Additive

Dispersant Additive

Wetting Agent

Silicone Leveling Agent

Special Additives

High Crosslink Density Phenolic Novolac Liquid Epoxy Resin for Heavy-Duty Anticorrosive Marine & Protective Coatings NPPN-638S

high crosslink density epoxy

phenolic novolac liquid resin

NPPN-638S epoxy resin

Epoxy Resin

Industrial Epoxy Resin

Epoxy Resin Coatings