A complete instrumentation set for bottle-cap and closure moulders — MFI, ESCR, tensile, impact, density and ash — to prove long-term reliability and sealing performance.
Bottle caps and closures live under stress: they must seal, be torqued on and off, resist environmental cracking with the packaged product, and survive years of storage. Failures — cracks, splits, sealing loss — usually trace back to resin properties, not moulding.
This solution combines flow, mechanical and durability testing so cap moulders can verify incoming resin, batch-to-batch consistency and finished-cap performance. Every instrument is built in Mumbai to ASTM and ISO methods and CE marked for export.
Each card links to the machine that runs the test.
Verify resin MFI batch by batch — cap moulders live and die by melt-flow consistency.
Time to cracking of HDPE caps in surfactant — the standard predictor of long-term field failure.
Tensile strength, elongation and modulus of the cap resin.
Notched Izod / Charpy impact of the resin — brittleness screen.
Grade verification and filler / regrind detection by displacement.
Percentage ash / filler in the resin at high temperature.
Resin moisture check before injection to avoid splay and surface defects.
Cap-focused tests: ASTM D1238 / ISO 1133 (MFI), ASTM D1693 (ESCR), ASTM D638 / ISO 527 (tensile), ASTM D256 / D6110 & ISO 179/180 (impact), ASTM D792 / ISO 1183 (density) and ASTM D5630 (ash). Every instrument is calibration-certified.
Tell us your standards, throughput and country. We'll recommend a configuration and quote within one business day.
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