Vilsum Nylon Metric Core Vents

Vilsum Nylon Metric Vents are injection molded for high precision. Available from 6mm to 20mm in diameter and a slot width of 0.4mm, these vents provide a "non-stick" surface combined with the toughness of nylon. Ideal for medium to high pressure molding, they are highly recommended for use in blow squeeze machines, v-process, and with cold box and CO2 sand systems.

Please note: These vents will be discontinued when stock is depleted.

Our core box air release vents are now sold in full bag quantities (100 vents/bag).

Sand Modulus Core Vent Slot Width Core Vent Mesh Size
Up to 55 AFS
0.45mm (0.014")
40 Mesh
55-75 AFS
0.30mm (0.012")
50 Mesh
75-80 AFS
0.25mm (0.010")
60 Mesh
Above 80 AFS
0.20mm (0.008")
70 Mesh