Karnak Karna-Flex Black Elastomeric Sealant For EPDM - 10.5l

£166.15 ex VAT
£199.38 inc VAT
Estimated delivery: Please get in touch for more accurate delivery times
£166.15 ex VAT
£199.38 inc VAT


Product Description

Karnak Karna-Flex is an elastomeric, thermoplastic-rubber sealant formulated to be used to repair EPDM, TPO and most PVC roof membranes along with spray polyurethane foam and

plywood roof substrates. Its ease of application, superior adhesion, elasticity and durability make Karna-Flex an ideal repair sealant. Bush Applied



Ideal for sealing and waterproofing EPDM, TPO, metal roof seams and splits and most PVC roof seams, flashings, gutters, fasteners, pinholes in metal, flashing and curb details. Also use to seal around skylights, penetrations and roof top equipment.

TPO and PVC roofing membranes must be at weathered at least four years. Not Suitable for application over asphaltic surfaces.


1. Single Component
2. Brush Applied
3. Superior film—forms a durable, weather resistant elastomeric membrane.
4. Has superior adhesive and cohesive strength.
5. Low temperature flexibility

1 – 2 Litres per SQ/M 

Colour: Black

System Features:

·         10 Year Guarantee

·         Brush Applied

·         Single Coat

§  Excellent water and water vapor resistance.

§  Excellent weather resistance.

§  Good resistance to salts and alkali

§  Aluminum reflectant characterist





14 Day Money Back Guarantee

We are happy to accept returns, if they are returned within 14 days of being received, and providing item has not been used or opened and is in original condition.

An email MUST be sent before returning your item, a note must be enclosed with the returned item, stating the reason for the return and the name under which the item was purchased.

Faulty Items

All products are individually inspected before being dispatched, to ensure items are sent out in perfect condition. In the unlikely event that your item is faulty, please return it to us within 7 days of receipt in its original condition. Upon inspection, we will be happy to replace or repair where possible, or refund you in full if the item is found to be faulty.

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