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TraSys® 4000 RotoFlow® | ZIP-SLIP® M520 | A320

Mould coating

TraSys® 4000 RotoFlow®

TraSys® 4000 RotoFlow® is a mold coating that facilitates the flow of polyolefin, nylon and crosslinked resin into hard- to-fill areas of rotational molds. RotoFlow helps fill in voids around inserts, tight radii, threads, and deep cavities.
RotoFlow® removes pinholes on the surface of rotomolded polyolefin, nylon and crosslinked parts. It reduces bridging, thinning, blowholes, and static lines.
RotoFlow® has received NSF® approval for use in food- grade rotationally molded plastics. Bearing the NSF® Mark assures Stoner Molding customers that RotoFlow® has been tested and approved by one of the most respected independent organizations in the world.


TraSys® 4000 RotoFlow® facilitates the flow of polyolefin, nylon and crosslinked resin into hard-to-fill areas of rotational molds. RotoFlow helps fill in voids around inserts, tight radii, threads, and deep cavities.

TraSys® 4000 RotoFlow® advantages:

  • Improves the quality and consistency of rotomolded polyolefin, nylon, and crosslinked parts
  • Removes pinholes, voids, and blow outs
  • Improves the appearance and operational performance of threads
  • Increases the strength of inserts
  • Reduces scrap and increases productivity
  • NSF® approval for use in food-grade plastic molding

Direction for use

Shake the can until you hear the ball inside break loose and rattle. Repeat shaking after each application. Ensure that the internal mold surface is clean and free of foreign materials. For best results, mold temperature should be at least 110° F (43° C).
Warmer mold surfaces will allow the solvents in RotoFlow to dissipate before loading your resin material charge. To pre- vent premature erosion of RotoFlow on the mold surface, slow your machine’s arm speed during the oven preheating phase.

ZIP-SLIP® M520 rotational mold maintenance

Stoner® M520 ZIP-SLIP® will help you save time, money and improve part quality.
ZIP-SLIP® is an excellent preventative maintenance product when applied to the parting line of the mold.
ZIP-SLIP® will help eliminate unwanted build-up of resin on the parting line that can cause gaps, leaks, messes, increased equipment maintenance and clean up time.
ZIP-SLIP® improves efficiencies by maintaining a tighter seal on the parting line, it helps eliminate pinholes, voids and blowholes.


Stoner® M520 ZIP-SLIP® is a preventative maintenance product for rotational molding to eliminate build-up on outer sealing edge of molds.

M520 ZIP-SLIP® advantages

  • Eliminate unwanted build-up of resin on the parting line
  • Maintain toghter seal of mold, reducing leaks and messes
  • Improves part appearance and reduces defects caused by gaps in the parting line
  • Save time on equipment maintenance and clean up
  • Colorless and non-staining

Direction for use

Recommended procedure.
Apply a light uniform coating on molds parting line surface with a paint brush. Recommended for flat surfaces as well tongue and groove where unwanted resin build-up can occur. Occasionally check coating uniformity by running the paint brush around the parting line.

Storage, handling and packaging

Handling: normal precautions common to safe manufacturing practice should be followed in handling and storage.

Storage: keep container tightly closed when not in use.

Packaging: Stoner® M520 ZIP-SLIP® is available in:

  • 1-quarts can: part # M520CN
  • 1-gallon can: part # M520GL
  • 5-gallon pails: part # M520PL

A320 all purpose cleaner

Stoner’s A320 All Purpose Cleaner is a time-saving, concentrated, water-based cleaner for your molds. This powerful, high pH cleaner quickly cuts through, Mold Release, color build-up, grease, oil, dirt, stains, and other tough grime within minutes of application. A320 All Purpose Cleaner is non-flammable, you don’t have to send your out tool to be sand blasted, you can clean the tool while it is on the spider, quickly cleans even the dirtiest tool. Powerful cleaner used to remove: mold release, colorants, resin build-up, waxes, metal, rubber.

A320 All Purpose Cleaner non è infiammabile. Non è necessario portare in officina lo stampo, si può pulire mentre è montato sul braccio perché A320 pulisce rapidamente anche lo sporco più incrostato. E’ un potente detergente utilizzato per rimuovere: distaccanti, coloranti, accumuli di resina, cere, metallo, gomma.

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