SMC Sheet Molding Compound

Name: SMC Sheet Molding Compound
Brand: WELLELE
Availability: InStock

Moldable sheet compound for large insulated enclosures and parts. SMC is a moldable glass-polyester sheet used for large insulated enclosures and structural parts where molding beats machining. We supply sheet and molded blanks to the part envelope you specify. SMC when the part is large or molded; laminated sheet when you machine from plate. We advise from geometry. Track-resistant, V-0 sheet for

WELLELE SMC Sheet Molding Compound - manufacturer, specifications and applications

Technical specifications

Material	Sheet molding compound (glass-polyester)
Use	Molded enclosures, parts
Property	Moldable, insulating
Standard	ASTM D4909 (phenolic), UL 94 V-0.
Operating temperature	-40 °C to +120 °C
Dielectric strength	≥ 20 kV/mm (per ASTM test method)

Information required for quotation

Base tube	Approved material grade, ID, OD, wall and conditioning as per drawing
Datums	Drawing datum scheme and measurement reference
Key dimensions	Feature positions, depths, pitch and diameters reviewed before quotation
Thread / profile	Standard or custom profile, class, depth, engagement and gage method
Other features	Holes, slots, steps, chamfers, cuts and marking
Acceptance	Tolerances, sampling, gages, FAI and inspection report
Order	Prototype and production quantity, packaging and delivery target

Applications by industry

Insulating box bodies and enclosures for switchgear
MV insulator and bushing housings (moulded)
Meter and fuse box compound-moulded parts
Transformer component housings
Fire-retardant structural insulation parts
Custom-moulded low-CTI compound components

Why SMC / DMC glass-polyester moulding sheet for this application

SMC provides a flow-moulded way to make complex insulating enclosures and housings that carry both dielectric and structural roles, with punch-to-net shapes for production volumes.

Confirm CTI, tracking and glow-wire result against standard; SMC flash and shrink need controlled moulding, not a slab substitute.

Standards: ASTM D709 (base), IEC 60893, UL 94 V-0, glow-wire (IEC 60695).

Not suitable for [application mismatch — state your duty: voltage class, arc exposure, continuous temperature and chemical environment]. We flag the correct grade during engineering review.

Feature and remaining-wall review

ID/OD turned; CNC drilling and punching for mounting holes. Review feature depth, edge distance and remaining wall against critical geometries. Capability is confirmed on your drawing, not from a blanket tolerance.

Material conditioning may be required for dimensional stability — specify humidity and temperature exposure.

Inspection and traceability

We state the control plan with you. Batch traceability links raw material lot to finished part.

First-article inspection (FAI) per your plan
In-process dimensional checks at every station
Batch certificate of conformance (COA) supplied on request
Lot traceability to incoming material certificate
Dielectric strength and insulation resistance testing available on request

Common questions

Is it flame retardant?

Yes, meets UL 94 V-0 in standard grades.

What applications suit bakelite?

Terminal blocks, insulating plates, low-cost structural parts where thermal exposure is limited.

Can it be machined?

Yes — CNC drilling, punching and turning. Sharp tools prevent chipping.

What standards apply?

ASTM D4909 (phenolic), UL 94 V-0.

SMC or laminated sheet?

ASTM D4909 (phenolic), UL 94 V-0.

Engineering Guides & Selection Notes

Related technical articles that help specify this product.

Get pricing for SMC Sheet Molding Compound

Attach the drawing with annual volume. We check the material against your duty and tolerance, verify ID / OD / wall / features, and respond with manufacturability notes and pricing.