Drool Shield

Drool Shield

Even with attentive maintenance and routine equipment inspections, almost all injection molding machines occasionally extrude plastic drool, or "blow back." Plastic drool has an unattractive name for a reason; it can lead to extended periods of downtime for cleanup or significant damage to equipment.

Drool Shield by UniTherm provides a simple solution for protecting heater bands, wiring and insulation from the damaging and costly effects of drool blow back. DroolShields are adjustable to fit any machine and install within seconds, with no downtime or equipment modification necessary.

Drool Shields are suitable for a clean-room environment and PFTE coated to permit easy clean-up.  Constructed from sturdy Air Craft Aluminum, Drool Shields withstand temperatures up to 700°F (370°C), making them a reusable, long-term solution for blowback at an affordable price. Protect your investments today with DroolShield by UniTherm.


before DroolShield

after DroolShield

Benefits & Features

Simple & Quick Installation

Protects equipment, heater bands, wiring and insulation

Adjustable for any nozzle size

Easy clean-up

Avoid downtime for cleaning

High temperature resistant

Nozzle Diameter

Design Components

  • Air Craft .80 Aluminum
  • PFTE Coating
  • Stainless Steel Clamp
  • Binding Post Guides
  • Temperature Range

DroolShield Sizes

  • 6" OD with 1" ID (expands up to 1 3/4")
  • 8" OD with 2" ID (expands up to 2 3/4")