- Backsheet PRESERV

  • High moisture barrier
  • High mechanical properties and Peel Bond retention post DHT & HAST exposure
  • High partial discharge
  • Superior bonding to EVA Encapsulant because of proprietary recipe of priming layer
  • Proven Raw materials
  • On-line quality control tests and inspection systems
  • Wide range: Fluoro, Non-Fluoro and Metallic Backsheets
  • UL & RoHS Certified

- Backsheet PRESERV

The Backsheet range PRESERV® from RenewSys offers a wide choice depending on application and budget. PRESERV® Backsheets exhibit high moisture barrier and high electrical properties - partial discharge. The values of partial discharge are ranging upto 1500 VDC even in lower thicknesses - thanks to right material selection.

PRESERV® Backsheets have superior bonding with Encapsulant on account of proprietary recipe of priming layer. This leads to longer durability of modules and longer cell efficiency.

The laboratory results have shown the performance of PRESERV® range of Backsheets up to 2000 Hrs. of Damp Heat Test with narrow Delta Y. HAST (Highly Accelerated Stress Test) exposure done on PRESERV® has shown extremely high Peel Bond Strength and retention of mechanical properties.

This makes PRESERV® Backsheets the ideal choice for quality conscious Solar PV Module makers.


Backsheet range ‘PRESERV’certifications:

1

PRESERV A-N

UL Short Property Evaluations (UL 746A)
RoHS

2

PRESERV 1-V

UL Short Property Evaluations (UL 746A)

3

PRESERV 1-D

UL Short Property Evaluations (UL 746A)
RoHS

4

PRESERV AL-N

UL Short Property Evaluations (UL 746A)

Why Backsheet PRESERV?

Properties Backsheet PRESERV Backsheet from Competitors Remark 
Product Range Fluoro,  Non-fluoro,  Al Foil based Backsheets in white and black colours Restricted choice Wide choice depending on application and budget.
Adhesion to EVA Encapsulant (N/cm) > 140 40 to 140 Superior bonding with Encapsulant on account of proprietary recipe of priming layer; longer durability of modules.
Interlayer Bond Strength (N/cm) 5 - 10 N/cm 2 - 7 N/cm Longer durability of modules.
Moisture Barrier (g/sqm/day) 1 - 1.6 1.6 - 2.5 Important  for longer cell efficiency and module durability.
HAST (Highly Accelerated Stress Test) [121 ⁰C, 100% RH and 2MPa@48 hrs.] Min 80% retention of mechanical properties and interlayer bond strength 20 - 50 % retention Shows high hydrolytic resistance substrates bonding material. Important for module durability.
Partial Discharge 1500 VDC for up-to 292 mic thickness Up-to 1100 VDC for similar thickness Important for safety .