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Joint Sealants
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According to their future exposure and the potential joint movement capability, all of the construction and expansion joints in a reinforced concrete structure require appropriate treatment and sealing as an integral part of any concrete repair and protection project.

This sealing of construction and movement joints is generally considered and covered in accordance with European Standard EN 1504 Part 9 Principle 1 (Preventing Moisture Ingress), however the materials to be used and details of their installation on site are not currently covered by the current EN 1504 Series of Standards. However it is obvious that if not treated and sealed appropriately with the right joint sealing materials, then any of the joints in a structure can be the source of future problems with further deterioration and water damage likely, together with additional cost.

Generally an elastic sealant should be selected that has sufficient elasticity to accomodate the anticipated level of joint movement, plus a correspondingly low elastic modulus to reduce any stress on the bondline at the sides of the joint to the movement. Additionally to minimise the potential for error the sealant should preferably be supplied as a one component, ready to use product, with good sag resistance to enable fast and efficient joint sealing. In some situations it may also be advantageous for the joint sealant to be overpaintable, although this should only be considered where limited movement is expected and using a compatible elastic protective coating - such as Sikagard 550W Elastic.

SFC
Sikaflex Construction

Sikaflex-Construction is a one part, moisture curing, elastic joint sealant based on polyurethane resin. It is designed for outdoor joint sealing applications as a general purpose elastic construction sealant for sealing joints in many types of buildings including movement joints in facades and construction/isolation joints around windows and doors, cladding panels etc. with good adhesion to concrete, brick, wood, metals and PVC profiles etc.

Sikaflex-Construction has a joint movements capability of 25% in accordance with International Standard ISO 11600, Classification F 25 HM / F 20 LM and high tear resistance.

Sikaflex-Construction uses Sika's patented bubble-free curing system and has a very short cut-off with minimal 'stringing' to avoid messy application and contamination of adjacent surfaces, folowed quickly by a tack-free surface. An excellent all round construction joint sealant and compatible for use with Sika concrete repair and protection systems.

Sikaflex-Construction is supplied in 600ml / cc foil sausages for application in standard bulk sealant guns (barrelled). We normally supply Sikaflex Construction in boxes of 20 sausages for ease of packaging and transport. 

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SFP2HP
Sikaflex-Pro 2 HP

Sikaflex PRO-2 HP is a one part, moisture curing, low modulus, elastic joint sealant based on polyurethane resin that is designed for the durable sealing of many different conctruction movement and connection joints for indoor and outdoor applications in many types of buildings and other structures. It has a joint movement capability of 25% in accordance with International Standard ISO 11600, F 25 LM.

Sikaflex PRO-2 HP is suitable for the permanently elastic sealing of movement joints in concrete facades and parapets for example, plus connection joints such as those around windows and doors, cladding panels and precast units, as well as similar types of joint in wooden and metal structures.

Sikaflex PRO-2 HP is easy to apply and has low stringing to avoid messy application and contamination of adjacent surfaces, plys it is easy to smooth and incorporates Sika's patented bubble-free curing system.

Sikaflex PRO-2 HP imparts very low stress to the joint arrises due to its integral stress relieving properties and cures to form a durable seal with high tear strength.

Sikaflex Pro-2 HP is supplied in 300 ml plastic cartridges for use in a standard sealant gun, and 600 ml foil sausages for use in a standard barrelled bulk sealant gun (both also available in the 'Tools and Accessories' section of this website shop). For ease of packaging and secure transport we normally supply Sikaflex Pro-2 HP in boxes containing 12 x 300 ml Cartridges and 20 x 600 ml Sausages.

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SFPR3SFPR3
Sikaflex Pro-3

Sikaflex Pro-3 is a one part, moisture curing, elastic joint sealant with high chemical and mechanical resistance for multi-purpose horizontal floor and concrete slab joints in both indoor and outdoor applications. It is suitable for use in both pedestrian and vehicle trafficked areas such as car parking decks, industrial floors in warehouses and production areas including clean rooms and in the food industry, plus many different types of civil engineering structures.

Sikaflex Pro-3 is also specifically tested and approved for use in waste water and sewage treatment plants and tunnels. It is designed to accomodate joint movement up to 25% and uses Sika's patented bubble-free curing.

Testing and Approvals: Sikaflex Pro-3 conforms to European Standard EN 15651-4 class 25 HM for interior & exterior applications, including cold climate areas. Conforms to ISO 11600 F 25 HM. Sikaflex Pro-3 is tested according to the principals of DIBT for Waste Water Exposure. Sikaflex Pro-3 meets European Standard EMICODE EC1 PLUS R, Classed as havin very low emissions. Sikaflex Pro-3 has the ISEGA Certificate for foodstuff area usage. Sikaflex Pro-3 is DWI Approved for contact with Potable (Drinking) water. Sikaflex Pro-3 is CSM TVOC tested (ISO-6.8) to be biologically resistant, Class: Very good. Sikaflex Pro-3 is resistant to Diesel and Jet Fuel according to DIBT guidelines

Sikaflex Pro-3 is supplied in 600 ml / cc foil sausages for application in standard bulk sealant guns (barrelled). We normally supply Sikaflex Pro-3 in boxes of 20 sausages for ease of packaging and transport.

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