Shrink wrapped pallets of blue epoxy resin drums with grade labels

Epoxy Resins

Name: Epoxy Resins
Brand: KingZhi Chemistry

Bisphenol A bisphenol F o-cresol and phenolic modified grades in one table

Overview

What This Product Is and Who Buys It

This portfolio covers bisphenol A, o-cresol novolac, phenolic modified and bisphenol F epoxy resins across a broad range of epoxy equivalent weights and softening points. Twenty nine grades are listed with EEW, Gardner colour, viscosity and softening point, so the specification can be checked before a purchase order is raised.

Key Benefits

Precisely controlled epoxy equivalent weight rather than a nominal figure
Low colour and consistent batch to batch quality
Available in liquid, semi solid and solid forms
Low total chlorine grades at 1500 ppm or below for electronic work

Palletised epoxy resin drums prepared for export shipment

Applications

Where This Material Is Used

Industrial and protective coatingsElectronics and electrical encapsulationComposites and moulding compoundsPowder coatingsCan and baking coatings

Who It Is For

Protective and industrial coating producers
Electronic encapsulation and CCL manufacturers
Composite and moulding compound makers
Powder coating and coil coating formulators

Problems It Solves

Liquid resin crystallising in an unheated warehouse and needing remelting
Total chlorine content too high for fine pitch electronic applications
Laminate systems needing higher thermal and chemical resistance than standard bisphenol A delivers

Technical

Technical Features

Bisphenol A liquid grades NPEL-127 to NPEL-134 and solid grades NPES-901 to NPES-909
Low crystallisation NPEL-128R and non crystallising NPEL-128S
Xylene diluted grades NPSN-301X75, NPSN-901X75 and NPSN-134X80
o-Cresol novolac NPCN-701 to NPCN-704L and bisphenol F NPEF-170, NPPN-638S and NPPN-631

Specifications

These figures are the manufacturer grade data as published for this product family. Anything not listed below has not been confirmed and is marked TBC on request rather than estimated.

Resin Type	Grade	EEW (g/eq)	Color (G) Max	Viscosity @25°C (cPs)	Softening Point (°C)	Key Features	Applications
Bisphenol A Epoxy Resin	NPEL-128	184–190	1	12,000–15,000	—	Standard BPA epoxy resin	Civil engineering, coatings, adhesives
	NPEL-128E	184–190	1	12,000–15,000	—	Standard electronic grade epoxy	Electronics, electrical
	NPEL-128G	184–190	1	12,000–15,000	—	Low total chlorine (≤1500 ppm)	Electronics
	NPEL-128R	184–194	1	12,000–15,000	—	Low crystallization	Civil, coatings, adhesives
	NPEL-128S	205–275	1	19,000–24,000	—	Non-crystallizing	Civil, coatings, adhesives
	NPEL-127	176–184	1	8,000–11,000	—	Standard low viscosity	Civil, coatings, adhesives, potting
	NPEL-134	210–220	1	Semi-solid	—	High-performance base epoxy	Coatings, potting, adhesives
	NPSN-301X75	450–500	1	6,000–14,000	—	Xylene diluted	Coatings
	NPSN-901X75	450–500	1	800–15,000	—	Xylene diluted	Coatings
	NPSN-134X80	230–270	1	800–1,400	—	80% xylene solution	Coatings
	NPES-609	2400–3000	1	—	135–150	Flexible type	Coil, can, baking coatings
	NPES-901	450–500	1	D–F	64–74	—	Coatings, laminates
	PES-902	600–650	1	1–M	82–92	—	Coatings
	NPES-903	700–750	1	N–R	90–98	—	Powder coatings
	NPES-903H	740–800	1	P–S	92–100	—	Powder coatings
	NPES-904	780–850	1	S–W	96–107	—	Powder & PU coatings
	NPES-907	1500–1800	1	Z–Z2	120–130	—	Can & baking coatings
	NPES-909	1800–2500	1	Z3–Z5	130–150	—	PCM, can, baking coatings
o-Cresol Epoxy Resin	NPCN-701	190–215	3	—	60–64	o-Cresol epoxy	Composites, coatings, molding
	NPCN-702	190–215	3	—	65–74	o-Cresol epoxy	Composites, coatings, molding
	NPCN-703	195–225	5	—	75–85	o-Cresol epoxy	Composites, coatings, molding
	NPCN-704	200–230	5	—	85–95	o-Cresol epoxy	Composites, coatings, molding
	NPCN-704L	200–210	5	—	82–90	o-Cresol epoxy	Composites, coatings, molding
Solid Phenolic Epoxy Resin	QS-901PN	500–580	—	—	80–90	Phenolic modified solid epoxy	—
	QS-903PN	750–850	—	—	105–120	Phenolic modified solid epoxy	—
Bisphenol F Phenolic Epoxy	NPEF-170	—	3	2000–5000	160–180	Standard grade	Electronics, electrical
	NPPN-638S	—	3	Semi-solid	170–190	High thermal & chemical resistance	Laminates, filament winding
	NPPN-631	—	2	1100–1700 @52°C	158–178	High thermal & chemical resistance	Laminates, filament winding

Grades listed are representative and not exhaustive. Ask for the batch certificate of analysis on the grade you intend to buy.

Handling

Packaging Storage and Shelf Life

Physical Forms: Liquid, semi solid and solid grades, plus xylene diluted solutions
Storage: Cool dry storage; low crystallisation grades are available where warehouse temperature cannot be controlled
Packaging: Contact us for the drum format available on the grade you select
Certification: Batch certificate of analysis with EEW and colour supplied with shipment

Use Guide

How to Work With This Product

Fix the epoxy equivalent weight first, since it sets hardener stoichiometry
For liquid grades work from the viscosity figure at 25 degrees C; for solid grades work from the softening point
Specify NPEL-128G if total chlorine below 1500 ppm is required
Choose NPEL-128R or NPEL-128S if the resin will be stored below room temperature
Match the hardener family: imidazole grades for one component heat cure, polyetheramine for ambient cure

Comparison

How It Compares

Within the Epoxy Resin category this product is positioned by the numbers in the table above rather than by a marketing claim. Compare NCO content, viscosity, equivalent weight or hydroxyl value against the alternative you are considering, and if the two are close, ask us for both samples and decide on your own line.

Quality and Documentation

Quality control runs across incoming raw materials, production and finished product inspection. A batch certificate of analysis is supplied with every shipment. We are a supply and trading company working with named manufacturers and OEM partners, so certification held by the producing plant is provided on request per grade rather than claimed here as ours.

Customisation

Customised grades and packing formats are available through our OEM partners and specialised manufacturing facilities. Tell us the property you need to move and we will say whether it is a grade change, a packaging change or not possible.

Industries

Industries Using This Product

Pallets of sealed steel drums of coating raw material in a warehouse

IndustryIndustrial and Protective Coatings

Protective coatings are bought on service life. The raw material decisions behind them are about crosslink density, film flexibility and how the system behaves once VOC limits tighten.

See Applications

Stacked drums of electronic grade epoxy resin wrapped on a pallet

IndustryElectronics and Electrical

Electronic materials fail on impurities long before they fail on mechanical properties. Total chlorine, colour and latency matter more here than headline strength figures.

See Applications

Solutions

Where This Product Fits In A Wider System

Blue drums of epoxy resin wrapped and palletised for export

SolutionEpoxy Formulation and Hardener Selection

Epoxy work is resin plus hardener plus cure schedule. Changing any one of the three changes the other two, so we specify them together.

See The Process

Illustration of sea rail road and air freight linked into one global network

SolutionGlobal Supply Chain and Sourcing

Regulated chemical raw materials are not hard to buy. They are hard to buy repeatedly, on time, with documentation that clears customs the first time.

See The Process

FAQ

Epoxy Resins Questions

What is the standard liquid grade?

NPEL-128 at 184 to 190 g/eq EEW, Gardner colour 1 and 12,000 to 15,000 cPs at 25 degrees C. It is used across civil engineering, coatings and adhesives.

Which grade should I use for electronics?

NPEL-128E is the standard electronic grade. NPEL-128G is the low total chlorine version at 1500 ppm or below, which is the one to specify for fine pitch work.

What can I do about crystallisation?

Specify NPEL-128R, a low crystallisation grade at 184 to 194 g/eq, or NPEL-128S, a non crystallising grade at 205 to 275 g/eq and 19,000 to 24,000 cPs.

Which grades suit powder coatings?

NPES-903 at 700 to 750 g/eq, NPES-903H at 740 to 800 g/eq and NPES-904 at 780 to 850 g/eq, with softening points from 90 to 107 degrees C.

What is available for high temperature laminates?

Bisphenol F and phenolic novolac grades NPPN-638S and NPPN-631, both listed for high thermal and chemical resistance in laminates and filament winding.