FAQ

We are one of the top quality coated abrasive suppliers in China and we are the NO. 1 of the imported backing paper in China.

We have two branches in USA and Vietnam. Another country status, pls contact with us learn more.

Jumbo roll: 500m per grit and total grit quantity 3000m for the same product and charge USD300 printing cost. When it reaches 10000m, we will return the USD300.

Sheet: 10000pcs per grit and total grit quantity 100000pcs for the same product and charge USD300 printing cost. When it reaches 200000 sheets, we will return the USD300.

Pls no hesitate to contact with us, we will analyze the kept sample and resolve for you as soon as possible. If it's our responsible problems, we will compensate for you.

The quality of abrasives products can be affected by the following factors:

① Smoothness of the paper: Base paper smoothness will affect the smoothness of abrasive paper and sanding piece.

② Roughness (WS) of the paper: For paper with good toughness, the resin will be easily taken in during waterproof treatment. The paper will have good strength and waterproofness. The paper will be brittle when it takes too much resin while has poor waterproofness when it takes not enough. Therefore, suitable roughness (WS) is very important.

③ Paper folding endurance and tensile strength: Poor folding endurance and tensile strength will reduce the paper strength. And the base paper will break even if grains are not run out.

① Grain types: Different types of grains have different applicability and pertinence. In this case, choosing the right grains is very important. Apply good grains to poor quality material sanding and this might not show the good performance of the good grains. Therefore, choosing the correct and economical grains for the right workpiece is very important.

② Strength of the Grains: The strength of the grains has a huge effect on abrasive cloth and heavy-weight abrasive paper. There are obvious effects on medium and high-density fiberboards. For light-weight abrasive belts and hand-sanding abrasive paper, there are not that many effects.

③ Self-sharpening of the grain: The grain will break itself during working and form a new angle. In this case, it can improve its sharpness. The self-sharpening depends on the variety and processing method of the grains.

④ Grain shape: Grains in acicular or flake shapes will be sharper but not wear-resistant while equivalent shapes are not that sharp but wear-resistant.

⑤ Correctness of the grit: The quality of the grains has a great deal with grit. P100 grains are sharper than P120. Normally abrasive paper in grit P120 will use P120 grains. But some factories will use P100 grain. Therefore, judging the quality of the abrasive paper should be on the basis of the same grit.

60 days after getting the prepayment.