Pro Foam Air Seal, FM330

Pro Foam Air Seal, FM330

FM330 is a one part, moisture curing expanding polyurethane foam that ideal for use as an air tight gap filler for general construction joints.



FM330 is suitable for applications such as sealing floor to wall and wall to ceiling joints and pipe & service penetrations.

The movement accommodation factor (MAF) of 35% ensures that the integrity of the seal is maintained in the event of movement and settlement.

  • A high performance PU foam with excellent acoustic and airtight performance
  • Airtight formulation - tested to ISO 6589
  • Acoustic dampening - up to 60 dB joint insulation index
  • Elastic performance - up to 35% movement accommodation ensures integrity of the seal in the event of movement
  • Sub-zero formulation - can still be used at temperatures as low as -3°C


Safety Datasheet

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We aim to dispatch our UK Mainland orders on a Next Working Day Delivery via our courier service and delivery is FREE when you spent over £100 inc VAT with us.  

Delivery Options

FREE Delivery over £100 (2-5 days)        £0.00

Standard Delivery (2-5 days)                     £6.99

Next Day Delivery*                                     £12.99

Next Day Delivery (Before 12) *             £19.99


All delivery times are Monday - Friday excluding public holidays and *orders must be placed before 11am to guarantee Next Day Delivery


If you need to return a product within 30 days, we are happy to refund the product provided it is returned, as sold, with all the original packaging, tags, labels and accessories.

To proceed with a refund please complete this RMA Form


Refunds / Returns

We are happy to refund the product provided it is returned in a re-sellable condition, please make sure it is in it's original box with all accessories. To proceed with a refund please complete this RMA Form Refunds All refunds will be issued to the payment method used on your original order.



Re-stocking fees?

Occasionally we may need to charge a re-stocking fee because our suppliers charge us a re-stocking fee. We will make every effort to avoid this but occasionally it is un-avoidable.


I've sent my package, how long will the refund take?

We aim to make the returns process as quick as possible, by making sure all associated paperwork is correctly submitted this will speed up the transaction.


  • Views: 2822
  • Product Code: FM330
  • Availability: In Stock
  • £7.68
  • Ex VAT: £6.40
  • 12 or more £7.20
  • 24 or more £6.88
This product has a minimum quantity of 12

Tags: Exterior, Polyurethane, Membranes, Intelligent Membranes, Foams,