Is an Epalyn pond liner as good as Butyl liners?

Epalyn pond liners and Butyl are both a high quality material and can both be manipulated into various shapes and sizes. They are also both durable and stable at extreme weather conditions as well as being UV resistant. Both materials can also be readily repaired if required.

The technical difference between Epalyn and Butyl is the polymer. To be called Butyl the sheet must contain more than 50% butyl polymer. The polymer is the ingredient that makes the sheet elastic. In most pond grade Butyl there is usually a percentage of EPDM polymer mixed in. Epalyn, however is made with 100% EPDM polymer. EPDM polymer is more readily used around the world in a range of industries as well as for lining ponds, it is generally cheaper.

Epalyn has a higher specification than Butyl in 60% of tests and equal in the remaining 40%:

 Physical Properties  Epalyn
 
 Butyl
 
 Hardness    
 65 + 5 IRH 
 65 + 5 IRH 
 Modulus at 300% Elongation 
 min 4.5 Mpa      
 min 4.5 Mpa      
 Tensile Strength
 min 9.0Mpa
 min 7.5 Mpa
 Elongation at Break
 min 300% 
 min 300%
 Tear Strength
min 30 kN/m 
 min 20 kN/m
 Properties after heat ageing 168h/1210
   
 Tensile Strength
 min 7.5 Mpa
 min 6.0 Mpa
 Elongation at Break min 300%
 min 300%
 min 200%
 Ozone Resistance 96h/300C/50 pphm
 and 80% elongation
 No cracks
 No cracks
 Brittle Point 
 max -400C
 max -300C

Like to buy Epalyn Pond Liner?

Visit our pond liner size calculator, insert your pond dimensions to get the exact measurements you require for your pond. The calculator will also give you the price for the size required per pond liner type. You are then ready to place your order.