Kömmerling has launched its new butyl based framing sealant ‘HelioSeal’ PVS 120. In contrast to existing framing sealants on the market HelioSeal PVS 120 is claimed to provide immediate green strength and superior water and moisture vapour tightness, while being hot applied and able to be used by hand or in fully automated high speed production lines.

Problem

Crystalline PV module makers as well as those in the thin-film industry know that water tightness alone is not enough for the protection of PV modules. It is also necessary to ensure moisture vapour tightness of the whole system especially in the framing area a parameter for durability. The PV industry is looking for sealing systems which can be easily used in the production process (e.g. one component, no mixing, fast curing, less waste).

Try Premium for just $1

Full premium access for the first month at only $1
Converts to an annual rate after 30 days unless cancelled
Cancel anytime during the trial period

Start $1 Trial

Premium Benefits

Expert industry analysis and interviews
Digital access to PV Tech Power journal
Exclusive event discounts

Or get the full Premium subscription right away

Get Premium Subscription

Or continue reading this article for free

Get Basic (FREE) Subscription

Solution

HelioSeal PVS 120 is a butyl rubber-based hot melt framing sealant which is delivered ready to use. Easy handling means simple processing by using pail or drum melting equipment and minimal waste. Along with a high level of green strength, superior water and moisture vapour tightness (less than 0.2 g/m2d) is another main feature. Primerless adhesion to glass, aluminium, galvanized and stainless steel are other valuable features.

Application

Long life sealant for ultra secure framing of thin film and crystalline PV modules

Platform

HelioSeal PVS 120 can be supplied for automated application equipment from 20 litre pails to 200 litre drums for easy integration in production lines. HelioSeal PVS products are used for sealing both the inner and outer components of modules with ease and the confidence of long term durability with high resistance to aging and stresses.

Availability

Currently available.

Anza Power signs second Fonterra PPA for 110MWac Karioi solar PV power plant in New Zealand

October 15, 2026

Anza Power has signed a second long-term PPA with Fonterra for its 110MWac Karioi solar PV power plant in New Zealand.

ARENA launches AU$250 million third Solar Sunshot round targeting large-scale solar PV plants in Australia

October 15, 2026

The Australian Renewable Energy Agency (ARENA) has launched a third round of its Solar Sunshot programme, offering up to AU$250 million (US$175 million) to companies that manufacture or demonstrate equipment for building large-scale solar PV power plants in Australia.