Film that opens cleanly, does not stick on the roll and runs fast on form-fill-seal and bag-making lines.
Polyethylene film is naturally tacky. Layers stick together on the roll (blocking), bags are hard to open, and film drags over forming collars and sealing jaws, which slows packing lines and causes jams.
Antiblock adds fine mineral particles that roughen the film surface very slightly, so layers do not cling. Slip additives migrate to the surface and lower the coefficient of friction (COF), so film slides over metal and over itself. Most packaging film needs both, and a combined slip-antiblock grade puts them in one dose.
Slip keeps migrating after extrusion, so COF changes as the film ages, and it is also affected by temperature, film thickness and the resin. We test COF, migration and ageing so the film arrives at your customer's line with the friction they specified.
Removes melt fracture and cuts die build-up.
PE / LLDPE · Blown film and extrusion
Thermal-oxidation protection, including in recycling.
PE / PP · Film, extrusion, injection and recycling
Agree the target COF with your customer: it sets the slip dose.
Slip takes time to migrate, so measure COF after ageing, not straight off the line.
Antiblock affects clarity, so balance blocking force against haze for clear packs.
Too much slip can affect print and lamination adhesion: tell us how the film is converted.
Antiblock stops film layers sticking to each other, using fine mineral particles on the surface. Slip lowers friction between the film and other surfaces. They solve different problems and are often used together.
Slip additives keep migrating to the surface for some time after extrusion, so COF usually falls as the film ages. Storage temperature and film thickness change the speed of that migration.
Food-contact declarations (EU 10/2011, US FDA 21 CFR) are available where the formulation qualifies. Tell us the end use and we will confirm the documents for the grade.
Send us your polymer, process and the problem you want to solve. We recommend a grade and starting let-down, then ship a 1 kg lab sample, 5 kg pilot sample or 25 kg line trial with TDS, SDS and batch COA.
Masterbatch has to prove itself on your extruder, not ours. This is the route every new grade takes.
Polymer, process, the problem to solve, and your current product if you have one.
A grade and a starting let-down for your line, shared with you shortly.
A 1 kg lab sample, 5 kg pilot sample or 25 kg line trial, with TDS, SDS and batch COA.
We review the results with your team and adjust dosage or formulation.
Price, MOQ and lead time fixed against the approved grade.