Application and Performance Study of Ethyl Cellulose Coating Materials in Abrasive Tool Manufacturing

Ethyl Cellulose (EC) is a high-performance polymer derived from natural cellulose, widely recognized for its exceptional film-forming, binding, and water-repellent properties. In the manufacturing of abrasive tools, EC serves as an advanced coating and modification material designed to improve grain retention, reduce moisture absorption, and enhance the overall structural durability of grinding wheels and sanding discs.

Key Performance Advantages

• Superior Film Formation: Creates a uniform, tough, and flexible protective layer over abrasive grains, preventing premature shedding during high-speed grinding operations.

• Moisture and Chemical Resistance: Effectively seals abrasive particles against humidity, oxidation, and mild chemical exposure, significantly extending shelf life and service stability.

• Controlled Thermal Behavior: Burns out cleanly during high-temperature curing or sintering processes without leaving carbonaceous ash or weakening the bond matrix.

• Optimal Adhesion: Enhances the interfacial bonding strength between abrasive minerals (such as corundum, silicon carbide, or diamond) and resin or ceramic binders.

Primary Applications

• Coated and Bonded Abrasives: Used as a grain coating agent to improve anti-loading properties, reduce friction heat, and optimize chip clearance during grinding.

• Resin-Bonded Wheels: Incorporated into bonding systems to improve green strength, flexibility, and impact resistance of cutting and grinding discs.

• Specialized Surface Treatments: Applied as a protective binder layer in precision polishing tools and micro-abrasive films.

Specification

Product Types/Specifications	K	N	T
Ethoxyl content, %	45.0~47.9	48.0~49.5	≥49.6
Viscosity(1:4ethanol-,5%)mPa.s	See Viscosity Specification Table
Solubility,%	≥99.0
Ash content,%	≤0.3
Moisture content,%	≤3.0
Heat resistance(120ºC,16h)	Non yellowing, caking and coking

Company Profile

Shanghai Prior Chemical Scientific And Technical Co.LTD. (Grade A Tax Credit) was established in 2016. Leveraging China North Industries Group Corporation (NORINCO GROUP) resources, the company trades -industrial materials including hydroxyethyl cellulose (HEC), hydroxypropyl methyl cellulose (HPMC), sodium carboxymethyl cellulose (CMC), ethyl cellulose (EC), and nitrocellulose (NC).
The company independently manufactures integrated nail-fastening products and holds equity in ammonium carboxymethyl cellulose (CMC-NH₄) production and marketing. It holds nearly 70% domestic market share in HPMC for automotive exhaust honeycomb ceramics.

FAQ

Q1: Are you a trading company or a manufacturer?
A: Trading company.
 
Q2:What can I buy from you?
A: Hydroxy Ethyl Cellulose (HEC), Ethyl Cellulose (EC), CMC-NH4, Chlorinated Polypropylene (CPP), N-Butyryl Chloride, HPMC, Red Base KD.

Q3: What are your payment terms?
A:  T/T (Telegraphic Transfer), L/C (Letter of Credit), D/A (Documents Against Acceptance), D/P (Documents Against Payment), or as per customer requirements.

Q4: Can you specify your company's payment terms?
A:  Typically:100% advance T/T payment, or 30% advance T/T payment with the balance against copy of B/L, or 100% L/C at sight.

Q5:Do you provide samples? Are they free or chargeable?
A:  Yes, we provide free samples (≤500g), but shipping costs are at the buyer's expense.

Q6: What is your delivery time?
A:  Usually 7–10 working days after payment.

Q7:How do you ensure quality?
A:  We monitor the goods throughout the production-to-sales process and resolve any issues for our customers.