Sista Black Aquarium Silicone Properties Excellent adhesion Super elastic High strength UV resistant Solvent-free 100% silicone for fish Application Joints must be clean, dry, oil-free and dust-free.

Tape both sides of the place to be filled.

Cut the tip of the cartridge horizontally relative to the application surface.

Insert the cartridge into the gun.

After the squeezed acrylic mastic is corrected and polished with soapy water, the tapes should be removed