Platinum Silicone Cure Inhibition: Controlled Contact Comparisons
Local tack at one contact face in platinum addition-cure silicone suggests checking substrates, gloves, primers and cleaning residue. If th…
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Hardness of Thin Silicone Parts: Shore A, IRHD and Finished Geometry
A handheld Shore A reading on a thin, curved or tiny part is not automatically standard material hardness. Check thickness, support, measur…
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Optical Measurement of Clear Silicone: Lighting, Edges and Fixturing
Define repeatable edge-selection rules for transparent silicone. Bright, dark or refracted contours selected by software may not represent …
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Gauge R&R for Silicone Parts: Operators, Fixtures and Deformation
Separate repeated-reading variation, operator differences and elastic recovery in a silicone measurement study. Standardize the method befo…
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Cpk for Multicavity Silicone Parts: Stability and Cavity Data
Do not assess multicavity Cpk from one pooled number alone. Confirm the measurement system, process stability and distribution, then inspec…
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TDS, COA or COC for Silicone Parts: Batch Acceptance Documents
TDS, COA and COC serve different purposes. A technical data sheet describes material information; a certificate of analysis addresses a bat…
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Changing Silicone Grades: PCN, Revalidation and Release
Matching hardness and color do not make a substitute compound equivalent. Describe formulation-system, manufacturing and finishing changes,…
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Moving Silicone Tooling to Another Press: Transfer Validation
Do not transfer a mold by copying temperature, time and pressure setpoints alone. Confirm interfaces, actual operating state and process wi…
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Managing Silicone Master and Limit Samples: Review and Replacement
Approved samples are not permanent standards unaffected by time. Storage, compression, contamination and coatings can change them. Keep dra…
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Compression Stress Relaxation in Silicone Seals: Retained Sealing Force
An unchanged installed gap does not guarantee unchanged sealing force. Compression stress relaxation concerns reaction-force decay while co…
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