Solar Energy

New Joining Techniques for Solar Energy

Market conditions put high pressure on cost structures, while demanding top quality and long-term performance of Solar Energy system.

The industry is therefore forced to consider optimizations in production and installation processes as well as new innovative designs. This leads to new materials and joining techniques which have to be implemented into production and installation.

The appropriate adhesive technology enables to save cost, increase production efficiency and even allows to add unique features to the final Solar system.Sika assists you with comprehensive project support in all phases from design to implementation and after-sales service with the optimal solution to achieve your targets.

Solar applications performed with Adhesive

Over 50%

of all CSP powerplants are

bonded with Sikasil®

40%

installation time reduction

with bonded mounting systems with Sikasil®

Concentrated Solar Power

Mirror Bonding

Bonding the mirror to the specific mounting systems as heliostats in tower, parabolic trough or fresnel technology.

System Benefits

Proven in several CSP plants around the world
Long term performance under harsh environmental conditions
Enabling a lean and cost enhanced design and production

Best recommended products

Plasocrete Super

Liquid Integral water reducing cum waterproofing admixture

Plasocrete Super provides the following beneficial properties :

Compatible with all varieties of Portland cement including Slag Cement.
Required at a very small dosage hence convenient to handle and greater economy
Improves water tightness to a great extent.
Reduced shrinkage, better finish
Improves workability
Rebound loss is low
No added chloride- does not attack reinforcement

Rokkon® R (FS)

Polyester resin based capsule for rock stabilisation

Controlled setting time
Permanent anchorage unaffected by vibration or by corrossive environment
Distributed anchorage - no localised high stresses, induced in bolted rock
Reliability: laboratory tested pre packed material, minimise complications like prolonged setting time, limited load bearing ability, etc.
Chemical & corrosion resistance - the cured polyester resin is resistant to fresh and salt water, oils, grease, petrol, salts etc.

Rokkon®-1

Cementitious capsule for rock stabilisation

Reliability : laboratory tested pre-packed materials remove all problems of controlling grout mixing underground thereby reducing any risk in constructing a fully column grouted bolt
Non-shrink : controlled expansion counteracts shrinkage to provide effective contact with rock
Chloride free : develops early strength without the use of chloride and makes it safe to use with embedded steel
Encapsulated
Thixotropic : minimises grout loss from overhead holes

Sarnacol®-2142 S

Adhesive for Sarnafil® felt backed roof waterproofing membranes

Proven performance over decades
Adheres to solid, rough, clean, dry or slightly moist surfaces
Application by roller
Good adhesion to different substrates

Sarnacol®-2152

Two component adhesive for Sarnafil® G 476 and Sarnafil® G 410 L Felt roofing applications

Adheres to solid, rough and clean concrete or cement mortar substrate
Adheres to plywood, timber boards, CLT panels
Solvent-free
Cold-applied (no heat or open flames required)
No lateral water migration between the concrete structure and the membrane system
Thixotropic
Primer free application

Sarnacol®-2170

Contact adhesive for Sarnafil® felt backed roof waterproofing membranes

Proven performance over decades
Adheres to solid, rough and clean surfaces
Application by brush or roller
Good adhesion to different substrates

Sarnafil® G 410-15 L

Polymeric PVC detailing membrane for roof waterproofing

Proven performance over decades
Lacquer coated surface
Resistant to permanent UV exposure
High dimensional stability from glass fleece inlay
High water vapour permeability
Resistant to all common environmental influences
Resistant to micro-organisms
Resistant to root penetration
Hot-air weldable
No open flame equipment required

Sarnafil® G 410-15 L Felt

Polymeric membrane for adhered roof waterproofing

Proven performance over decades
Lacquer coated surface
Resistant to permanent UV exposure
Fast installation with Sarnacol® adhesives
High dimensional stability from glass fleece inlay
High water vapour permeability
Resistant to all common environmental influences
Hot-air weldable
No open flame equipment required

Sarnafil® Metal PVC

Metal sheets and coils laminated with Sarnafil® G roof waterproofing membrane

Resistant to UV exposure
Can be cut and shaped either on site or in metal workshop
Sarnafil® G/S lamination is hot air weldable

Sarnafil® S 327-15 L

Polymeric PVC membrane for mechanically fastened roof waterproofing

Proven performance over decades
Lacquer coated surface
Resistant to permanent UV exposure
Resistant to permanent wind exposure
Resistant to all common environmental influences
Hot-air weldable
No open flame equipment required
High water vapour permeability

Sika AnchorFix®-2+ Tropical

Anchoring adhesive for medium to high loads

Fast curing
Standard guns can be used
Medium to high load capacity
ETA Approval available
Suitable for cracked concrete
Drinking Water certified
LEED Attestation available
Non-sag, even overhead
Styrene-free
Low odour
Low wastage

Sika AnchorFix®-3030

Epoxy based high performance chemical anchoring adhesive

Long open Time
Can be used in damp concrete
High load capacity
ETA for anchoring in cracked concrete
ETA for post installed rebar connections
Seismic tested (C1 & C2)
Suitable for contact with drinking water
Fire resistant
Styrene-free
Good adhesion to substrate
Shrinkage-free hardening
Standard sealant guns can be used (300ml cartridge)
Low emissions
Low wastage

Sika Boom®

Multi-position, highly expansive polyurethane fixing foam

1-Component
Multi-positioning foam; application in all positions (360°)
Easy application with nozzle
High expansion rate
Fast curing
Very good thermal insulation
Effective sound dampening
HFC-free

Sika MonoTop®-1010 IN

Bonding primer and reinforcement corrosion protection cement based slurry containing recycled waste materials and corrosion inhibitors

Uses recycled waste materials
Easy to use, just add water
Good adhesion to concrete and steel
Good resistance to water and chloride penetration
Can be applied with a brush or by wet spray technique

Sika MonoTop®-108 Water Plug IN

Rapid setting mortar for plugging water leakage instantly

Rapid setting prevents washout in the presence of running water
Hardens within ~2–3 minutes (+27 °C)
Ready to use, just add water
Quick strength development
Non-toxic and chloride free
Coefficient of thermal expansion is similar to concrete
Low exothermic, which minimises risk of thermal cracking
Excellent adhesion with different materials like masonry, concrete, metals, PVC, HDPE, etc.

Sika MonoTop®-122 F

Dual shrinkage compensated, trowelable fibre reinforced thixotropic repair mortar.

Easy to use (only to be mixed with water)
Structural an Cosmetic repairs
Possible to apply on vertical substrate in 50mm layers.
Good adhesion strength
Ideal where the repairs are more than 5 mm
Sprayable - able to repair complex profiles easily with minimal rebound

Sika MonoTop®-3400 Abraroc

High Abrasion Resistant Concrete Repair Mortar (formerly Sika® Abraroc® SR)

Ready to mix with water
High abrasion resistance (A6 classification)
High hydraulic abrasion resistance (equivalent to granite)
Resistant to sea water and aggressive water conditions
Applied up to 50 mm thick in one layer on vertical and horizontal applications
Applied manually or mechanically (dry spray)

Sika Noleek

Powder based waterproofing admixture for mortar and concrete

Compatible with all varieties of Portland Cement including Slag Cement.
Easy to use
Effective pore filler to prevent water seepage
Easy compaction resulting in denser concrete
Reduced shrinkage, better finish
Rebound loss is low
No added chloride- does not attack reinforcement
Supplied in consumer friendly pack

Sika ViscoFlow®-50 H

High Performance Workability Enhancing Superplasticizer

Sika ViscoFlow®-50 H produces a more uniformly cohesive high quality free flowing concrete Sika ViscoFlow®-50 H will result in the following advantages of concrete:

Improved dispersion properties
Keeps workability for extended time
Slump flow retention without additional retardation
Constant slump flow
Smooth concrete and concreting operations
Improved rheology
Improved strength development
Reduced drying shrinkage
Improved durability

Sika ViscoFlow®-5263 NS

High Performance Workability Enhancing Superplasticizer

Sika ViscoFlow®-5263 NS produces a more uniformly cohesive high quality free flowing concret Sika ViscoFlow®-5263 NS will result in the following advantages of concrete:

Improved dispersion properties
Keeps workability for extended time
Slump flow retention without additional retardation
Constant slump flow
Smooth concrete and concreting operations
Improved rheology
Improved strength development
Reduced drying shrinkage
Improved durability

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Solar Thermal Collector

Bottom plate bonding

Bonding and sealing of bottom plate to framing system

System Benefits

Shortens cycle times with faster curing technologies
Reduces handling times thanks to increased initial strength
Secures joint performance with structural adhesives

Best recommended products

Cover Glass Bonding

Bonding and sealing of cover glass to the framing system

System Benefits

Eliminates mechanical fixing of cover glass
Secures durability and tightness thanks to the structural adhesive
Increases the production output
Simplifies automation of production
May eliminates raised edges that trap dirt or water

Best recommended products

Sikasil® AS-785

Fast curing and structural assembly silicone adhesive

Outstanding adhesion and mechanical performance under harsh environment conditions
Excellent adhesion to a wide variety of substrates
Very good mechanical properties
Performance retention over a wide temperature range
Long-term durability
Low volatility
Meets EOTA ETAG 002
UL® certified: UL94 V-1, QOQW2 (-40 °C – 105 °C)

Sikasil® SG-500

High-performance, 2-component silicone structural glazing adhesive

Outstanding UV and weathering resistance
SNJF-VEC recognized (product code: 2433)
Fire rated class B1 (DIN 4102-1)
Contributes to LEED v4/v4.1 EQc 2: Low-Emitting Materials

Sikasil® SG-500, black

Meets requirements of EN 15434 and ASTM C1184
Structural sealant for use in structural sealant glazing kits covered by ETA-03/0038 issued by Technical Assessment Body Deutsches Institut für Bautechnik, Declaration of Performance 15754339, certified by notified product certification body 0757, certificate of constancy of performance 0757-CPR-596-7110760-1-7, and provided with CE marking
Design tensile strength for dynamic loads:
σ_des = 0.14 MPa (ETA)

Thinfilm Photovoltaic

Bonding to mounting devices

Structural bonding of the module to the mounting structure in production or on-site

System Benefits

Saves up to 40% installation time
Saves up to 25% overall PV system cost
Elimination of electrical grounding
Minimized material handling compared to clamping
Minimized micro cracks on cells implies higher yield
Elimination of raised edges enables self-cleaning for higher yield and durability
Ensured durability by structural and proven adhesives
Simplified tolerance compensation of bonded components

Best recommended products

Sikasil® AS-70

Structural assembly silicone adhesive

Outstanding UV and weathering resistance
Performance retention over a wide temperature range
Bonds excellent to glass, metals, coated metals, plastics and wood
Long-term durability
UL® certified: UL94 HB

Sikasil® AS-785

Fast curing and structural assembly silicone adhesive

Outstanding adhesion and mechanical performance under harsh environment conditions
Excellent adhesion to a wide variety of substrates
Very good mechanical properties
Performance retention over a wide temperature range
Long-term durability
Low volatility
Meets EOTA ETAG 002
UL® certified: UL94 V-1, QOQW2 (-40 °C – 105 °C)

Junction box bonding and potting

Bonding and potting of junction poxes on photovoltaic modules

System Benefits

Shortens cycle times thanks to short “non-flow” and curing times for potting
Fast handling due to fast reacting products
Shows durable water-tightness and insulation
Demonstrates excellent adhesion and flammability rating
Provides long lasting environmental protection
Eliminates settling of components thanks to balanced formulation

Best recommended products

Sikasil® AS-785

Fast curing and structural assembly silicone adhesive

Outstanding adhesion and mechanical performance under harsh environment conditions
Excellent adhesion to a wide variety of substrates
Very good mechanical properties
Performance retention over a wide temperature range
Long-term durability
Low volatility
Meets EOTA ETAG 002
UL® certified: UL94 V-1, QOQW2 (-40 °C – 105 °C)

Sikasil® AS-787 SL

Self-levelling potting compound for electrical components

Short non-flow time with excellent flow properties
Good heat dissipation
Superb dielectric properties
Excellent adhesion to most photovoltaic substrates
Outstanding performance under harsh environment conditions
Low volatility
UL® certified: UL94 V-1, HWI 3, HAI 0, RTI ≥105°C

Crystalline Photovoltaic

Framing

Bonding and sealing of the aluminium frame to PV module

System Benefits

Proven and certified technologies
Long term performance under harsh environmental conditions
Increased production output with two-component systems

Best recommended products

Sikasil® AS-785

Fast curing and structural assembly silicone adhesive

Outstanding adhesion and mechanical performance under harsh environment conditions
Excellent adhesion to a wide variety of substrates
Very good mechanical properties
Performance retention over a wide temperature range
Long-term durability
Low volatility
Meets EOTA ETAG 002
UL® certified: UL94 V-1, QOQW2 (-40 °C – 105 °C)

Bonding to mounting devices

Structural bonding of the module to the mounting structure in production or on-site

System Benefits

Saves up to 40% installation time
Saves up to 25% overall PV system cost
Elimination of electrical grounding
Minimized material handling compared to clamping
Minimized micro cracks on cells implies higher yield
Elimination of raised edges enables self-cleaning for higher yield and durability
Ensured durability by structural and proven adhesives
Simplified tolerance compensation of bonded components

Best recommended products

Sikasil® AS-70

Structural assembly silicone adhesive

Outstanding UV and weathering resistance
Performance retention over a wide temperature range
Bonds excellent to glass, metals, coated metals, plastics and wood
Long-term durability
UL® certified: UL94 HB

Sikasil® AS-785

Fast curing and structural assembly silicone adhesive

Outstanding adhesion and mechanical performance under harsh environment conditions
Excellent adhesion to a wide variety of substrates
Very good mechanical properties
Performance retention over a wide temperature range
Long-term durability
Low volatility
Meets EOTA ETAG 002
UL® certified: UL94 V-1, QOQW2 (-40 °C – 105 °C)

Junction box bonding and potting

Bonding and potting of junction poxes on photovoltaic modules

System Benefits

Shortens cycle times thanks to short “non-flow” and curing times for potting
Fast handling due to fast reacting products
Shows durable water-tightness and insulation
Demonstrates excellent adhesion and flammability rating
Provides long lasting environmental protection
Eliminates settling of components thanks to balanced formulation

Best recommended products

Sikasil® AS-70

Structural assembly silicone adhesive

Outstanding UV and weathering resistance
Performance retention over a wide temperature range
Bonds excellent to glass, metals, coated metals, plastics and wood
Long-term durability
UL® certified: UL94 HB

Sikasil® AS-785

Fast curing and structural assembly silicone adhesive

Outstanding adhesion and mechanical performance under harsh environment conditions
Excellent adhesion to a wide variety of substrates
Very good mechanical properties
Performance retention over a wide temperature range
Long-term durability
Low volatility
Meets EOTA ETAG 002
UL® certified: UL94 V-1, QOQW2 (-40 °C – 105 °C)