About PourMath

PourMath is a set of calculators and a product database for people who pour epoxy: river tables, deep casts, bar tops and flood coats. The site answers the practical questions that come before a pour. How much resin does this void need? How many layers does this product allow? How do I measure Part A and Part B by weight?

What makes it different

Every product value on the site comes from a document the manufacturer publishes: the technical data sheet (TDS), the safety data sheet (SDS), or the manufacturer’s own product page. Each value links to that document and shows the date we checked it. When a manufacturer does not publish a value, the site says “not published” instead of filling the gap with an estimate.

The calculators show their formulas and assumptions on the page, so you can check the arithmetic yourself. The math is covered by automated tests, including unit conversions and invalid input.

What it is not

• It is not a product review site. We have not run our own tests on the products listed, and no page claims otherwise.
• It is not affiliated with any resin manufacturer, and no manufacturer pays for placement.
• It is not a substitute for the manufacturer’s current instructions or safety data sheet.

Who runs it

PourMath is published by ResinMath, based in United States. The site is independent and funded by advertising. Read how we make this site for the sourcing and review process, or use the contact page to report an error.