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Pros & Cons
pros
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Versatile Application
Customers have had great success using Minwax High-Performance Wood Filler in various applications beyond just wood repair, including as a non-conductive material for electronics and potting. Its versatility and quick curing time make it a favorite among users.
Easy Sandability
Customers have generally positive opinions about the easy sandability of Minwax High-Performance Wood Filler. They appreciate its ability to be easily modeled and sanded for a smooth finish before painting. However, some mention challenges with staining due to its medium gray color when dried and the quick setting time in warm weather. Additionally, the product is considered expensive for large jobs.
Strong Adhesion To Wood
Customers highly praise Minwax High-Performance Wood Filler for its strong adhesion to wood, making it an excellent choice for repairing various damages. Some users have reported that it sets harder than wood itself, ensuring a durable fix. However, a few customers caution against attempting too many repairs at once due to the product's quick hardening.
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Quick Drying Time
Customers have mixed opinions on the quick drying time of Minwax High-Performance Wood Filler. While some appreciate its fast curing and strength, others find it too quick to work with and difficult to apply due to its short working time. Users suggest mixing small batches and applying quickly to avoid wastage.

Highlights
Quality
I actually have used this as a potting material for low power/low heat producing electronics with excellent results as it is no... Read More
Product is very good and durable for exterior work ("lve used it for outdoor repairs for years!
Fills cracks in wood easily and completely.
I tried to tackle too many areas at once and it forced me to work much harder in the end when the material was hardening and i ... Read More
Overview
- How are reviewers describing this item?
fast, great, small and strong. - Our engine has profiled the reviewer patterns and has determined that there is minimal deception involved.
- Our engine has detected that Amazon has altered, modified or removed reviews from this listing. We approximate total reviews altered up to 2579.
- Our engine has discovered that over 80% high quality reviews are present.
- This product had a total of 1,285 reviews as of our last analysis date on Feb 23 2025.
Helpful InsightsBETA
Posted by a reviewer on Amazon
I have used this product to repair wood window sills that had started to rot
Posted by a reviewer on Amazon
If i understand it correctly this is a 2 part polyester based filler very similar to autobody filler
Posted by a reviewer on Amazon
This is my go to for wood filler for painted anything
Posted by a reviewer on Amazon
Used this product a couple years ago to fix a rotting wood door frame
Posted by a reviewer on Amazon
A month ago i used it again to repair a deck board that had rot at one end
Posted by a reviewer on Amazon
I screwed in a board below the deck board to give the wood filler a backer
Posted by a reviewer on Amazon
But it’s still subjected to bending stresses
Posted by a reviewer on Amazon
If it deteriorates i’ll come and update the review with how long it held up
Review Count History
Price History
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