Structural Adhesive
Rotafix Structural Adhesive (RSA) is a structural epoxy adhesive that has been extensively tested against ISO15274, it carries a CE mark, so you can be assured that it gives a consistently high level of performance that you can rely on.
Pairs well with
Structural Adhesive
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Product Details
Structural Adhesive
Rotafix Structural Adhesive (RSA) is a structural epoxy adhesive that has been extensively tested against ISO15274, it carries a CE mark, so you can be assured that it gives a consistently high level of performance that you can rely on.
RSA is a high performance unfilled thixotropic structural epoxy adhesive that has a gel like consistency. RSA has a very slow cure making it ideal for structural connections in timber. The slow setting nature of the epoxy glue allows you to manipulate timber joints for a few hours after it is applied.
RSA is a thick film adhesive that cures without the need for pressure or additional heat being applied during the cure, this makes it an ideal adhesive for on site construction as no specialist equipment is required.
Once RSA is cured it behaves very much like timber, it will flex, move, expand and contract with similar properties to that of the timber substrate, giving you a reassuring connection.
Rotafix RSA is an epoxy structural adhesive used extensively for :-
- Bonding rods and plates into timber for engineering repairs, such as Timber Resin Splice
- Strengthen upgrading timber using bonded in flitch plates
- Bonding Glass fibre and carbon fibre reinforced plates and rods into timber and masonry
- Repairs to splits, shakes and cracks in timber beams
- Interior and exterior construction in wood
- Structural Joint Glue
- Moment resisting joints
- Stressed skin floors
- Marine applications such as lock gates and jetty repairs.
RSA is a solvent free, thixotropic epoxy adhesive which can be applied horizontally or vertically. There is negligible slump so working overhead or in side slotted substrates is not an issue.
RSA epoxy adhesive can also be used for Concrete and Masonry repairs and performs well in brick, block or stone work. RSA structural adhesive can be used for crack stitching masonry where cementitious products are inappropriate.
High performance adhesive for structural connections
A high performance unfilled thixotropic structural epoxy adhesive with a gel like consistency with a slow cure making it ideal for structural connections.
Rotafix's strengthening techniques were invaluable to the project by ensuring the complex remained open throughout the repair works and the aesthetic of the exposed timber frame was retained.
— J LongwillStructural Engineer
Light Weight Epoxy Mortar - great product, great service, all companies should be like this, Thanks
— Ian ForwardBradford, UK
Rotafix Structural Adhesive - Excellent product
— Keith Burdett Wales
Good technical support on all aspects of wood repairs continues to play a major role. The quality and service of Rotafix is critical, as well as timely delivery. Rotafix staff are always very accommodating to ensure the applications are suitable.
— J.R.SolomonWinnipeg, Canada
Additional Information
Available Sizes
- 3L (Product code: 3113)
- 400cc (Product code: 3552)
Product Coverage
As a guide 400cc pack of mixed RSA at an adhesive thickness of 1mm thick will cover 0.4m² of timber. As a guide for crack injection 400cc pack would fill 5 linear meters of a crack 3mm wide x 25mm deep.
How to use
Mixing:
- Add the full contents of the smaller container, the curing agent, to the larger container, the base.
- Mix the pastes thoroughly using a flat-ended palette knife until the material is smooth and uniform in colour.
- Place the follower plate onto the surface of the mixed material. Ensure it sits parallel inside the tub, with the outer and central lips pointing upwards.
- Cut the seal from the front end of the cartridge sleeve.
- Position the back of the cartridge vertically and centrally over the hole in the follower plate.
- Press the cartridge firmly and continuously down onto the follower plate until the follower plate reaches the base of the mixing tub.
- Carefully remove and invert the now-filled cartridge.
- Screw on the front injection nozzle and any chosen injection tube assembly.
- Insert the rear plunger.
- Where applicable, install the filled RSA cartridge into the injection gun.
- For spreader application as an adhesive, dispense directly from the cartridge without using the front nozzle or injection tube.
Mixing Time
Mix the Base and Hardener together for at least 3 minutes using a palette knife, until the material is smooth in consistency and uniform in colour. Only mix one complete pack at a time, or the quantity that can be used within the product’s pot life.
Important Note for 3 Litre Packs
Rotafix Structural Adhesive (RSA) 3 litre packs must be mixed using a slow-speed drill and mixing paddle for at least 2–3 minutes, until the material is smooth and uniform in colour. Once mixed, the 3 litre pack must be used within 1 hour at temperatures above 20°C.
Cleaning Tools
Clean all tools and application equipment immediately after use with thinners or solvent wipes. Hardened or cured material can only be removed by mechanical means.
Recommended Equipment
- Palette knife, Ref: 3642
- 400cc injection gun, Ref: 3667
Product Support
For technical advice call us on+44 (0) 1639 730481 or email sales@rotafix.co.uk to discuss your requirements.
Pack Includes
Base Coat
Hardener
Product Instructions
FAQs
Please read our FAQs page to find out more.
What are resin repairs and what are they used for?
Resin repairs are used to repair or strengthen timber within a building. Our adhesives, grouts and mortars are workable to pump, pour and mould and can be used for a whole range of repairs due to their versatility. They are mostly used within structural timber repairs because of its strength and non-porous composition that makes a tight bond with any timber elements. Damp affected timbers soon start to rot and lose their structural integrity, therefore, it is important to remove affected timbers and rebuild the structure. Timber resin repairs can offer a cost-effective solution by repairing only the damaged area instead of replacing the whole timber structure.
What types of repairs are there?
For structural timber repairs there are several types of repairs we may suggest. After speaking to one of our technical experts, we will assess which of these repairs will be the most effective to solve the property problem. Some of the most common types of repairs for structural timber damage include:
- Solid Resin
- Timber Resin Splice (TRS)
- Crack and Shake Repair
- Joinery & Cosmetic
How do I know if I need timber resin repair?
The truth is, you may find it difficult to identify whether you need a timber resin repair. If you have noticed rot affected timber within your property, then it’s clear that the affected area needs to be treated. Using timber resin repair systems is one of our rot repair options, but it should only be specified by a professional property surveyor.
If you believe that you have structural timber damage, please call and speak to one of our technical experts to assess the problem and identify the most effective course of action.
What are the benefits of structural timber resin repairs?
Resin has long been used for structural timber repairs because of the benefits it provides and its effectiveness in timber repairs. Some of the benefits of resin repairs are:
- They minimise disturbance – Using resin repair means that you can retain existing ceilings and floor fabric but still make an effective repair to the structural timbers. Many other types of timber repair will involve demolishing much more of the property to get access for the repair, often leaving the property uninhabitable for longer and costing more for the repair.
- Keep your building in use – With other types of repair whole sections of a building are often exposed and unable to be used. A resin repair will only need to expose the localised area.
- Retain the structure – Resin repairs aim to save the existing timber through repair of the rot affected timber only.
- Durability – Resin is resistant to moisture and therefore minimises the chances of a future fungal attack.
- Match exposed timber profiles – Ornate exposed structural timbers can be repaired to match the existing profile.