Non-Corrosive Mat Spray pMDI Release Agent for Daylight Orientated Strand-Board (OSB) Presses: PressGuard X210

At a glance

A large oriented strand board (OSB) mill in Canada was converting to 100% pMDI resin. To prevent sticking and optimize production, a new release agent was required. Pressguard X210 was introduced and tested. The end result—consistent clean release, no panel sticking, and no press corrosion.

Key metrics

CLEAN
RELEASE
LOW
APPLICATION RATE
NO
FOUL ODOURS, CORROSION, or BUILD-UP

Challenges

This multi-opening/daylight OSB mill was converting production from formaldehyde resin on the board face to 100% pMDI. Previous mat spray release agent testing resulted in build-up, corrosion, foul odours, and panel discoloration. Any alternative solution had to eliminate these issues, result in a clean release, and be applied at a cost-effective dosage.

Solutions

Pressguard X210 was introduced using a step-down dosage to optimize panel production at minimum effective application rate for release. Spray system adjustments made to ensure adequate release agent coverage on the OSB mat.

Results

Low Application Rate Prevented Panel Sticking

Consistent clean release, no sticking of panels, no noticeable picking, and no residue build-up on the press.

Top spray bar 3.0 g/m² solids

Bottom spray bar 0.67 g/m² solids

 

Quality of Final Product

Light boards with no panel discoloration or imperfections.

 

No Negative Effects

  • No release agent build-up on press
  • Non-corrosive to press platens
  • No foul odours
  • No panel discoloration

Data