White Core is a high quality mat designed for framers who want the impact of a bright white bevel that will not discolour but do not require the qualities or price of conservation matboard. With a range of over 220 references in colour, size, texture and designer finishes, PETEBORO WHITE CORE will help you meet all your designing challenges.

What makes PETERBORO WHITE CORE different?

It has a unique construction with each component buffered to a pH of 8.2 +/-0.5% and containing a minimum 3% reserve of calcium carbonate to provide years of stability.

The Surface Paper

On over 85% of our Whitecore references we use the same Conservation grade surface paper found in our conservation line. The surface paper is buffered and lignin free. It has a high strength quality to minimize surface tearing during cutting.


Our core is pure white and has been buffered against acids to ensure bright white bevels and v groves for years to come. Our specially designed fibre morphology and density specifications means Peterboro Whitecore cuts cleaner and results in smoother bevels.

Backing Paper

We are the only company to use high quality conservation backing paper on all our white core. Our tensile profile keeps the boards flat and resists tearing while cutting.


Our WHITE CORE line has one of the highest specifications in the market. The result is a superior mat that will stand the test of time, resisting the effects of acid degradation and remaining bright.


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