Import Alkylphenol Formaldehyde Resin — Buy in wholesale FOB from Supplier in China

Puyang Willing Science & tech. Development Co., Ltd. offers three distinct grades of alkylphenol formaldehyde resin for rubber compounding: WL-2201, WL-2203, and WL-2302. WL-2201 appears as pale yellow to yellow flakes with ash content at 0.1% and a softened point range of 80 to 95 degrees Celsius. WL-2203 presents as yellow to light brown sheets or particles with a softening point between 80 and 105 degrees Celsius, hydroxymethyl content of 1.0% minimum, acid value of 55 to 10 mg KOH/g, and loss on heating capped at 1.0% maximum with 0.1% maximum ash. WL-2302 appears as dark brown flakes or granules. All three variants serve as vulcanizing agents or tackifiers in rubber formulation, with WL-2201 and WL-2203 specifically designed for natural rubber and synthetic rubbers including styrene-butadiene, chlorobutyl, nitrile, butyl, and ethylene-propylene terpolymer.

The phenolic resin chemistry in these grades relies on the condensation reaction between alkylphenol and formaldehyde, producing thermosetting resins with controlled molecular weight and reactive hydroxymethyl groups. WL-2201 functions primarily as a vulcanizing agent for rubber compounds that resist conventional sulfur vulcanization due to low unsaturation, imparting high heat resistance, high pressure resistance, and aging resistance. WL-2203 operates as a tackifier that reduces Mooney viscosity, improves self-adhesive properties, enhances physical and mechanical properties, and improves thermal aging without adverse effects on cured rubber. The WL-2302 grade, with its darker coloration, suggests a higher degree of condensation or modified phenolic structure for specific compounding requirements. Standard packaging for all grades is 25 kg kraft paper bags with internal plastic lining, typical for phenolic resin storage stability and moisture protection.

These resins find application in tire manufacturing, rubber joints, seals, transmission belts, food containers, gaskets, hoses, and footwear soles. Compounders in the automotive, industrial rubber goods, and consumer products sectors represent the primary buyers. WL-2201 can be added directly during the mixing stage, simplifying process integration. Storage below 20 degrees Celsius extends WL-2201 shelf life to six months, while WL-2203 tolerates storage up to 25 degrees Celsius with a one-year stability period. Direct sunlight and heat sources must be avoided for all grades. Custom formulations are available on request, though specific modification parameters require direct technical discussion with the supplier.

Puyang Willing Science & tech. Development Co., Ltd. operates from Pushang Road 148 in Puyang, Henan Province, China, postal code 457001. The company holds a harbor trust tier classification on the platform, with a response rate of 0.00% and zero average response hours recorded. These signals indicate limited active engagement through platform messaging channels, though they do not reflect overall business capability. The supplier specializes in phenolic resin chemistry for rubber industry applications, with a product portfolio spanning vulcanizing agents and tackifiers.

The listing presents three formulated grades (WL-2201, WL-2203, WL-2302) with documented specifications and application guidance, suggesting established manufacturing rather than trading-only operations. No information is provided about production capacity, R&D facilities, quality management system certifications, or export experience. The supplier states customization capability for all grades, implying technical flexibility in phenolic resin synthesis. Buyers should verify manufacturing scope, quality control protocols for softening point and ash content testing, and regulatory compliance for food contact applications where stated. The company name includes science and technology development, though the listing does not detail specific research activities or patent holdings.