Overview Reviews Product Description Use Catalyst 3000/RV Additive at 1-3% to reduce the viscosity and help the ink penetrate into the fabric. Product Videos Custom Field Product Reviews Write a Review Write a Review × Matsui Matsui RV Additive Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *