If we didn't use this stuff, when you start to pump the air out of your vacuum bag, the vinyl might suction down only in the one spot right under the valve, and may not evacuate the air from the whole bag. By placing the netting under the valve and across your project, it creates a pathway for the air to reach the valve.
Price includes delivery within Australia
Use in a strip to lay over a portion of your project, a diagonal with both ends draped over the sides works best.
Most importantly, position the breather directly under the valve to ensure the air finds a passageway out of the bag.
It is not necessary to completely cover your project with the netting.
You can cut the 6’ length into smaller pieces with scissors if required.
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