MBP Silicone Sealing Mats by Molecular Biology Products are research-grade silicone mats that press into each well to seal microplates. Choose mats for 96 and 384-well PCR plates, 384 deep well plates, or round, square and V-bottom 96 deep well plates, a chemical resistant mat, or an AxyMat septa mat for ABI instruments. Mats are packed 10 per unit, 5 units per case.