Industrial Grade Expandable Microsphere Physical Foaming Agent for PVC, PP, PE and EVA
Thermo-expandable microsphere physical foaming additive offered for plastics and elastomer applications, including PVC, EVA, PE and PP. Buyer checks should focus on confirmed CAS identity, grade selection by expansion temperature and particle size, residual volatile content, powder appearance, packing format, SDS/TDS/COA availability, and export documentation for India or other overseas markets.
Quick buying facts
Identify the grade, package, and import market before comparing suppliers.
Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.
CAS No. listed by source: 25133-97-5; buyer should verify whether this CAS correctly represents the supplied microsphere grade or only a component/resin referenceExpandable microsphere physical foaming agent / plastic auxiliary additiveCandidate for RFQ after CAS, grade and export-document verification
CAS No. listed by source: 25133-97-5; buyer should verify whether this CAS correctly represents the supplied microsphere grade or only a component/resin reference
EINECS listed by source: 253-242-6; confirm against supplier SDS and COA
Formula listed by source: C14H22O6; confirm relevance to the actual commercial microsphere product
Appearance: white powder
Typical particle size stated: 25–35 µm
Model/grade referenced: WS606; source also references ADVANCELL EM / MINICELL EM series, requiring brand and grade clarification
Application polymers: PVC, EVA, PE, PP and selected rubber/plastic compounds
Foaming mechanism: physical expansion microsphere type, not ADCA-type chemical decomposition foaming agent
Key grade parameters to request: expansion start temperature, maximum expansion temperature, particle size distribution, true density before/after expansion, volatile content, moisture, ash/residue, and recommended polymer compatibility
Who uses this page
Target buyers
PVC compounders and profile manufacturers
PP and PE injection or extrusion processors
EVA foam and polymer modification producers
Rubber and plastic additive distributors in India and overseas markets
Industrial buyers comparing alternatives to chemical blowing agents
Before matching
Documents to check
CAS number, grade, assay, and impurity profile
SDS, COA, TDS, HS code, and transport classification
Destination-market import documents before supplier matching
Package and route
Packing notes
Source lists transport package: 20 kg/bag
Confirm inner liner, moisture protection, palletization, and export carton or bag strength for sea freight
Ask whether sample packs are available for lab evaluation before bulk RFQ
Confirm shelf-life statement, storage-condition statement, and batch traceability on COA
Request packing photos and net/gross weight per pallet for freight quotation
Applications and sourcing options
Check whether this product fits the buyer's actual application.
Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.
Use context
Common applications
Lightweighting of plastic compounds where closed-cell microballoon expansion is required
PVC, EVA, PE and PP formulations requiring fine and uniform foaming structure
Foamed masterbatch development and polymer additive trials
Extrusion molding, injection molding, coating, press molding and blow molding applications where processing temperature matches selected grade
Industrial formulation trials comparing physical microsphere foaming agents with chemical foaming agents
How we compare
Sourcing options
Request lab sample with full SDS/TDS/COA before placing 1 ton MOQ order
Ask supplier to recommend grade based on polymer, processing temperature and target expansion profile
Compare at least two grades with different particle size and expansion temperature ranges
Source through audited exporter with confirmed export rights and shipment history to the destination market
Use third-party pre-shipment inspection for packing, labeling, batch number and document consistency
Human review
Compliance notes
Request current SDS, TDS, COA, product specification sheet, and commercial invoice/packing list template before ordering
Confirm HS code; source lists 3824999999, but buyer should verify with customs broker for destination country
Confirm dangerous goods classification for the exact grade, including UN number if applicable, or written non-DG statement supported by SDS transport section
Confirm export eligibility, country-of-origin statement, and any destination-market documentation needed for India or other importing countries
Verify whether any hydrocarbon-containing microsphere grade has transport, storage, or temperature-control considerations under applicable shipping rules
No regulatory approval or customs clearance should be assumed from marketplace listing data alone
Buyer search paths
Related sourcing terms
These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.
Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.
Questions to confirm
What is the exact manufacturer name, brand, and grade: WS606, ADVANCELL EM, MINICELL EM, or another private-label grade?
Can you provide SDS, TDS, COA, and specification limits for the exact batch offered?
Is CAS 25133-97-5 applicable to the whole product, shell polymer, or a listed component only?
What are the expansion start temperature, peak expansion temperature, particle size distribution, and pre-expansion density?
What are the limits for moisture, residual volatiles/hydrocarbon content, ash, coarse particles, and foreign matter?
Is the product suitable for the buyer’s target resin system and processing temperature range for PVC, PP, PE, EVA, or rubber compounds?
Is the product DG or non-DG for sea and air transport? Please provide the SDS transport section and any carrier acceptance notes.
What is the minimum order quantity, sample quantity, lead time, production capacity, and batch-to-batch consistency record?
Checks before quote
Request current SDS, TDS, COA, product specification sheet, and commercial invoice/packing list template before ordering
Confirm HS code; source lists 3824999999, but buyer should verify with customs broker for destination country
Confirm dangerous goods classification for the exact grade, including UN number if applicable, or written non-DG statement supported by SDS transport section
Confirm export eligibility, country-of-origin statement, and any destination-market documentation needed for India or other importing countries
Verify whether any hydrocarbon-containing microsphere grade has transport, storage, or temperature-control considerations under applicable shipping rules
No regulatory approval or customs clearance should be assumed from marketplace listing data alone
Next step
Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.
