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UV cure adhesives UV cure adhesives

Permacol® solvent-free UV-adhesives are particularly designed as high performance industrial materials for sealing, bonding, coating and potting. They are used in many fields, including electrical equipment, electronics, automotive industries, optics and others. When exposed to ultraviolet rays of 300 to 400 nm wavelength generated by a UV irradiator, the adhesive polymerises and cures in approximately 30 seconds to form a tough cured product characterised by excellent flexibility, adhesive strength, anti-corrosiveness, thermal resistance and electrical characteristics.

Using a one component solvent-free adhesive, which cures in minutes, ensures a clean work environment, and enables automation and speeding-up of the manufacturing process.

Permacol BV is able to UV curing equipment or intermediate towards suppliers.

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Structural adhesives Structural adhesives

Permacol® structural adhesives are used to bond many different materials. These solvent free adhesives are not very fast curing, but have excellent properties like high bonding strength and filling capacity. All these adhesives are two component systems and have to be mixed before applying.

Epoxy; are universal hard constructive adhesives with filling capacity and a high bonding strength. Applicable on metals, ceramic, glass, wood, some plastics, etc.
- hard
- high bonding strength (especially to metals)
- good chemical resistance
- low shrinkage

Polyurethane; are relatively cheap, medium hard / flexible constructive adhesives with filling capacity.
- medium hard / flexible
- high bonding strength to wood
- relatively cheap
- good water resistance

Acrylic
- high bonding strength to plastics

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Adhesives for electronics Adhesives for electronics

The use of adhesives in electronics is growing, especially in the field of bonding and fixation of electronic components. This growth is mainly due to improvements in adhesives. Properties like temperature stability, electrical conductivity, outgassing, mechanical stability, durability and workability have improved rapidly over the last few years.

Please find here the brochure Adhesives for electronics.

SMD / SMT adhesives
Bonding of SMD components on printed circuit boards. Permacol® SMD adhesives are applicable for temporary bonding of electronic components on PCB's before soldering in the solder wave. A drop of adhesive is applied either on the PCB or under the component. This will hold the two together, even before curing, due to the wet strength (green strength). Curing is done very quickly; afterwards the solder connections are made. Solder is needed for electrical contact, but is rarely required to withstand shear forces, where SMD adhesives contribute to a better fixation of the components. Important properties like viscosity and wet (green) strength make the usage of these adhesives preferable.

Electrically conductive adhesives
Applicable where electrically conductive bonding is desired. Permacol® one- or two component electrically conductive adhesives are applicable where an electrically conductive bonding is desired. Applications might include bonding lead wire to electrodes, solder paste replacement in the assembly of SMD's, die attachment and repair of conducting paths.
Besides electric, there are heath conductive adhesives for applications where it is needed, such as heat sinc or transit.

Coating, fixing and encapsulation
Casting resins (two components); In the electronic industry, insulating casting resins serve to protect circuits or components from the adverse effects of the mechanical, chemical or thermal environments in which they operate. By encapsulating an electrical / electronic unit and thereby improving the insulation between components, durability of the product will be increased. Permacol® casting resins are applicable in many different applications. Compared to adhesives, casting resins are in general not used in thin layers, but for casting, potting, encapsulation and molding applications. The main application of casting resins is to protect against adverse effects of mechanical, chemical, or thermal influences.

UV-adhesives; Permacol® 389 series UV curable adhesives are available in different viscosities and are therefore suitable for coating, fixing and encapsulation of electronic components.

Blop-top systems; Blop-top (glop-top) systems are used for coating bare IC's, which are bonded directly to PCB's, flex circuits, or other substrates.

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Fast curing adhesives

Time is money. Therefore for many applications and production methods it's important to use fast curing adhesives. There are many different fast-curing adhesives. More than 10 factors can contribute to determing which adhesive is most suitable. Permacol® has 4 categories of fast curing adhesives.


Cyanoacrylate adhesives; can be used if quick curing and a high bonding strength is desired. Cyanoacrylates are not suitable for large surfaces and are water sensitive. Permacol® cyanoacrylate adhesives can be used with ACTIVATOR QFS for faster curing, curing of thicker layers and avoiding blooming (=white mouldiness of CA adhesives on synthetics).

- fast curing (seconds) at room temperature
- good for small surfaces
- high bonding strength
- good dispensability
- good bonding of plastics, rubbers, metals etc.

UV-curing adhesives
- fast curing (30 seconds-2 minutes) using UV equipment
- particularly designed for sealing, bonding, coating and potting
- very transparent

Heat curing adhesives; Permacol® one component heat curing epoxy adhesives can be dispensed easily and obtain good mechanical properties after curing including high bonding strength and resistance against moisture and chemicals. These adhesives are besides other applications used to apply needles to syringes for medical use.
- fast curing (minutes) at elevated temperatures
- good dispensability
- high bonding strength

2 component fast curing adhesives

Second Generation Acrylic adhesives (S.G.A.); Apply hardener lacquer on one surface and the resin on the other surface. Curing starts at the moment the lacquer and the resin make contact. Not applicable in case filling capacity is desired.

Polyurethanes; These adhesives are 2 component systems. They have to be mixed before applying. Available in practical two sided/dual cartridges with mixing consoles.

5 minute epoxy adhesives; These adhesives are the best known 2 component epoxies. They have to be mixed before applying. Available in practical double sided cartridges with mixing consoles.

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Clear adhesives Clear adhesives

Bonding two materials without seeing the adhesive is often desired. The main reason is the transparency of the materials to be bonded.

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Flexible adhesives Flexible adhesives

Many applications require a flexible adhesive layer. The materials to bond, determine which type of adhesive will be the best choice. Permacol® offers a lot of different flexible adhesives. These are divided into 3 categories.

Silicone adhesives; are flexible, offer good temperature and water resistance and are applicable for bonding and sealing of different materials.
- most flexible category in the product range
- room temperature vulcanising (RTV)
- temperature limits 40°C to + 180°C / + 260°C
- applications: electronics and bonding / sealing of various materials

UV curable adhesives
- UV389 series
- applicable for coating, potting and bonding
- very clear
- fast curable with UV equipment

Polyurethane adhesives; are relatively cheap, medium hard / flexible constructive adhesives with filling capacity.
- moderate flexible adhesive layer
- water resistant types
- strong bonding of metals, some plastics, wood
- relative cheap

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Casting resins Casting resins

Permacol® casting resins are applicable in many different applications. Compared to adhesives, casting resins are in general not used in thin layers, but for casting, potting, encapsulation and molding applications. The main application of casting resins is to protect against adverse effects of mechanical, chemical, or thermal influences.

Epoxy casting resins; offer excellent electrical properties and are applicable in many electrical and optical systems. Pot life decreases if the mixed amount of casting resin increases, because epoxies react exothermally.
- Hard
- Optically clear types available

Polyurethane casting resins; offer good shock resistance and electrical insulation properties, and are applicable for electronic applications.
- Medium hard/flexible
- Good water resistance
- Cheap

Silicone casting resins; are flexible and offer excellent vibration and shock resistance. These resins also offer good electrical and insulating properties. Faster curing is possible at elevated temperatures.
- Flexible / soft
- Suitable for molding applications
- Excellent water resistance
- Excellent temperature resistance

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