U-Pol Onion Board - ON/1-2
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Product Information
Full details
The U-Pol Onion Board is an essential tool for professional body shop technicians and automotive restorers who require a clean, consistent surface for mixing body fillers and putties. By utilizing a multi-layer tear-off system, it eliminates the need for messy scraping and cleanup between jobs, ensuring your workspace remains organized and your filler mixtures stay free of cross-contamination. While the disposable nature of the sheets offers significant time savings and improved mix purity, users must be prepared to manage the disposal of the used backing sheets throughout the day.
All features
| Model Part Number | ON/1-2 |
|---|---|
| Brand | U-Pol |
Extended Product Information
FAQs
How many sheets are included in the pack?
This package contains 2 pads, with each pad containing 100 individual sheets, totaling 200 sheets.
Can I use this for mixing paint?
No, these boards are specifically engineered for the viscosity of body fillers and putties. They are not suitable for liquid paints or thin solvents.
Does the board have a non-slip backing?
The board does not feature a non-slip adhesive backing; it is recommended to secure it to your workspace if you are working on a slick surface.
How do I know when a sheet is ready to be discarded?
Once you have finished applying your filler and the sheet is covered in cured or excess material, simply peel it off to reveal a fresh surface for the next batch.
Is the material recyclable?
Due to the chemical residue from the automotive body filler, used sheets must be disposed of according to your local regulations regarding hazardous workshop waste.
Troubleshooting
Sheet tears while mixing
Ensure you are using the board on a flat, hard surface and avoid applying excessive vertical pressure with a sharp-edged spreader.
Filler sticking to the board
Verify that your filler is mixed to the correct ratio; poor hardening can cause the material to remain tacky or sticky.
Board slips during mixing
Apply a small piece of double-sided tape or a heavy-duty adhesive strip to the underside of the pad to secure it to the workbench.
Pros and Cons
Pros
- Eliminates the time-consuming process of scraping or cleaning mixing boards
- Prevents contamination from previous filler batches
- Helps achieve a smoother filler mix to reduce pinholing
- Compact and easy to store in a workshop environment
- Each package includes 2 complete pads for a total of 200 sheets
Cons
- Requires constant disposal of used sheets
- Not a reusable surface product
- Cannot be used for high-heat applications
- Limited to use with standard body fillers and putties
Setup, Compatibility & Care
The Onion Board is designed for immediate use right out of the packaging. Simply place the board on a flat, stable workspace near your repair area. No additional mounting hardware or specialized preparation is required.
Compatibility: This board is compatible with most standard polyester body fillers, glazing putties, and cream hardeners. It is not intended for use with high-solvent primers or thinners that may degrade the paper surface.
Care: To maximize efficiency, ensure the board is placed on a level surface. After mixing a batch, peel the sheet away from the pad using the corner tabs and dispose of it according to your local facility's waste management guidelines for chemical-laden shop debris.