Pure acrylic, modified acrylic and other mineral-filled resin sheets may look similar. Colour, translucency, cutting debris or a price threshold cannot reliably prove composition. Use documents, traceable samples and agreed testing to verify the product you buy.

1. Define the specification

Record the resin grade, filler description, colour code, dimensions, thickness, finish and intended application. “100% acrylic” describes the resin system, not a sheet without mineral filler. Ask the supplier to define ambiguous terms such as composite, UPE or calcium-filled board.

2. Obtain product documents

Request the technical data sheet, safety data sheet, relevant test reports and written warranty. Check product identity, test date, conditions and scope. A report for one colour, thickness or batch should not be treated as proof of every product offered.

3. Approve traceable samples

Mark samples with the supplier, product code, grade and batch where available. Check appearance, thickness and finish. Have a qualified fabricator test operations relevant to the project, such as a joint or a curved component. Fabrication success demonstrates suitability for that trial, not a chemical analysis.

4. Agree independent testing when needed

If composition is essential to the contract, agree appropriate testing with a qualified laboratory and a clear sampling procedure. Define pass criteria before ordering. Do not use an improvised burning, smelling or hydrochloric-acid test as a buying method.

5. Check the delivered order

Match packaging and batch records to the approved specification. Inspect quantity, colour, dimensions, defects and shipping damage before fabrication. Keep records for any claim. Warranty terms and possible repairs depend on the actual product and contract; no fixed lifespan follows from a resin label.

Read the grade comparison and manufacturer selection guide. Request KSTONE’s documents and samples for your intended order.