SolarGain® Solar Panel Sealants

Advanced solar panel edge sealant technology engineered to enhance photovoltaic module durability, moisture protection, warranty confidence, and long-term performance.

SolarGain® Edge Sealant is a desiccated polyisobutylene (PIB) solar panel edge sealant technology engineered to help photovoltaic module manufacturers improve durability, reduce long-term moisture ingress risk, and strengthen warranty confidence.

In modern solar manufacturing, long-term performance and reliability are critical differentiators. While solar module edge sealants represent a small portion of total module cost, they play an outsized role in protecting module integrity, reducing degradation risk, and supporting long-term field performance.

Trusted by PV manufacturers for more than 20 years, SolarGain functions as a high-performance moisture barrier sealant for solar panels, helping protect cells, conductive coatings, and internal module components from moisture vapor ingress that can compromise performance over time. Designed for demanding outdoor environments, SolarGain delivers excellent UV resistance, high-heat stability, and long-term adhesion performance to support photovoltaic service life expectations exceeding 25 years.

SolarGain Edge Sealant has been successfully utilized in advanced photovoltaic technologies, including TOPCon, HJT, thin film, tandem cell, and perovskite solar modules while integrating into existing lamination and automated manufacturing processes without added complexity.

Manufactured in the USA, SolarGain also helps manufacturers navigate evolving domestic sourcing initiatives, supply chain considerations, and compliance requirements associated with modern solar manufacturing.

Why Solar Panel Edge Sealing Matters

Moisture ingress remains one of the leading contributors to premature photovoltaic module degradation.
Solar panel edge sealing performance directly impacts long-term durability, field reliability, and warranty confidence.
SolarGain® helps mitigate these risks with proven moisture vapor barrier performance and long-term environmental stability

See the Impact of Solar Module Edge Protection

Watch how SolarGain Edge Sealant helps protect photovoltaic modules from moisture ingress and environmental exposure compared to unsealed module edges.

PV Module Applications & Compatibility

Compatible Applications

TopCon modules
Heterojunction (HJT) PV modules
Thin film solar technologies including CdTe and CIGS
Perovskite and tandem cell PV systems
Building-integrated photovoltaics (BIPV)
Floating solar applications
Smart dynamic glass systems

Automated Manufacturing Integration

Compatible with existing lamination processes
Supports automated dispensing systems
Scalable for high-volume production
Available in tape and pumpable application formats

Solar Module Performance & Manufacturing Benefits

Key Benefits

Helps extend photovoltaic module service life and long-term reliability.
Reduces moisture-related degradation risks that can impact module performance over time.
Supports stronger warranty programs through proven environmental durability.
Minimizes field performance concerns in harsh outdoor environments.
Enables advanced module designs through electrical isolation capabilities.
Integrates into existing manufacturing processes without significant production changes
Manufactured in the USA to support sourcing, compliance, and supply chain initiatives.

Application Formats

Pumpable SolarGain Edge Sealant (PSET)
Designed for high-volume automated photovoltaic manufacturing environments, PSET is a hot-melt liquid-applied solar module edge sealing solution compatible with globally available dispensing systems and automated production equipment.
SolarGain Edge Tape (SET)
Pre-extruded to module-specific dimensions, SET functions as a scalable solar edge seal tape solution supporting both intermittent production and fully automated manufacturing lines.

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This page was last updated on June 5, 2026. Downloaded document versions may differ. Please check the individual documents for most current version.

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