4471 Walden Avenue
Lancaster, NY 14086
Phone: 716.681.8222
Fax: 716.681.8789
Email: info@unitedsilicone.com

Hot Stamp/Heat Transfer Equipment

Troubleshooting Guide to

Hot Stamp/Heat Transfer Decorating

Trust the experts at United Silicone to guide you through your hot stamp and heat transfer applications.  With over 35 years of experience, United Silicone is the industry leader you can count on for successful stamping projects.

A simplified troubleshooting guide below on hot stamp and heat transfer decorating can help your project run smoothly

Troubleshooting Hot Stamp/Heat Transfer Decoration

Symptom Cause Remedy
Incomplete Image
  • Uneven Die-to-Part Contact
  • Part Contamination
  • Foreign Particles on Part Surface
  • Insufficient fixture support permits part to flex under pressure
  • Air entrapment between heat transfer foil & part
  • Reposition fixture so decorating surface is parallel to a flat die or conforms to a cont’d die
  • Discontinue use of flow agents, anti-stat solutions and/or silicone-based mold releases
  • Clean surface with white cotton cloth or glove
  • Redesign fixture to provide rigid support under stamping surface and/or ensure that mandrel-type designs do not deflect
  • Redesign die face to include convex crown to use crown foil stamping
Rollover in Image
  • Uneven Die-to-Part Contact
  • Excessive Pressure
  • Lengthy Dwell Time
  • Sinks in Part
  • Variations in wall thickness from part-to-part
  • Reposition fixture so decorating surface is parallel to a flat die or conforms to a contoured die
  • Decrease stroke length and/or reduce machine output
  • Reduce dwell time setting
  • Introduce make-ready beneath part in the areas that are hitting light then reduce force as indicated above
  • Switch to dual durometer silicone rubber die
Edges of Decoration are not Sharp
  • Insufficient Pressure
  • Part Contamination
  • Die face temperature not hot enough
  • Short Dwell Time
  • Foil Stripping Conditions
  • Foil coatings are effected by lengthy heat exposure prior to the cycle
  • Provide adequate stroke length and/or increase machine output
  • Discontinue use of flow agents and/or silicone-based mold releases
  • Increase thermostat setting on machine
  • Increase dwell time setting
  • Slow head retraction and/or introduce head-up delay
  • Use before/after foil selector to advance foil just prior to head descending
Poor Foil-to-Part Adhesion
  • Insufficient Heat at Die Face
  • Short Dwell Time
  • Part Contamination
  • Foreign particles on part surface
  • Foil-to-Part Incompatibility
  • Increase thermostat setting on machine and/or move the thermocouple closer to die face
  • Increase dwell time setting
  • Discontinue use of flow agents, anti-stat solutions and/or silicone based mold releases
  • Clean surface with white cotton cloth or glove
  • Switch to different foil formulation