MS Polymer Joint Sealant
Supex 603UV is based upon hybrid silyl modified polyether technology. It is an odourless, one part adhesive sealant suitable for all kind of industrial applications even in adverse conditions. It has high bond strength and primerless adhesion on most type of substrates or moist surfaces. It can be painted with most kind of paints and has superior weatherability in all climates. It has a wide temperature range and will not form bubble within sealant even in a high humidity condition. It is an ideal product for all in one indoor and outdoor bonding and sealing purposes.
- Good mechanical strength
- Non-bleeding and crack resistant
- No visible stain even on porous substrate
- Excellent UV radiation and weather resistance
- Permanently flexible & non-shrinkage
- Free of isocyanate, solvent, acid and silicone oil
- No bubble formation within sealant
- Primerless adhesion on most substrates
- Can be applied on damp surface
- Fungus is not easily grow on sealant
- Paintable with all types of paints.
Technical properies- Supex 603UV
Chemical Base: Silane Terminated Polymer
Specific gravity: 1,38±0,03 g/cm3
(ASTM D 1045–86)
Tack free time: 10-15 min.
(25ºC and 50% R.H)
Shore Hardness: 35±5
(ASTM D 53505)
Elongation at break(%): > 400
Tensile strength(MPa): > 1,50
Uses of MS polymer joint sealant:
Supex 603UV is suitable for mounting and pasting of materials such as metal,
aluminum, glass, plastic, wood and concrete with each other.
It can be used for construction industry, both indoors and outdoors as an elastic adhesive;
- Insulation of window and door elements,
- Connection joints of wood and metal structures,
- Installation and insulation of facade elements,
- Kitchen and bathroom sealing applications,
- Building facades,
- Roof constructions,
- Concrete joints
Supex 603UV is specially developed as a universal sealant for sealing building connection and expansion joint on most building materials such as concrete, brickwork, aluminum, stainless / mild or galvanized steel, door or metal frames, and ceramics. It’s also suitable for sealing and bonding in automotive industry, cold storage & clean room.
Supex 603UV is used in original construction and for repairs that are subject to structural movement:Expansion and Control Joints, Perimeter Caulk Joints, Entry Way Steps, Precast Concrete Panel Joints, Cop-ings, Risers and TiltWall Joints, Bunker Silos, Septic Tanks and Manure Pits.
How to use MS Polymer Joint Sealant:
- Substrates must be clean, dry and free from grease. Remove all dirt, oil, grease, detergents and loose material.
- The joint edges can be masked with tape to prevent contamination of adjacent substrates. The tape should be removed carefully after tooling.
- Cut tip off cartridge. Cut nozzle to desired size at 45°angle. Screw nozzle onto cartridge. Place cartridge into caulking gun.
- Extrude the sealant firmly into joint to ensure complete contact with joint faces.
- Tool as required within the tooling time to achieve smooth surface.
Supex 603uv MS polymer joint sealant will skin forming in approximately 15 minutes and it will cure to a depth of 10 mm in 7 days. Longer curing time may be necessary in dry and low humidity area.
Supex 603uv is paintable with water based paints, however due to large number of paints and varnishes available we strongly suggest a compatibility test before application. Paints based on alkyd resins may have extended drying time.
Good resistance to water, diluted inorganic acids and alkalis.
Poor resistance to concentrated acids and alkaline solutions, organic solvents, and halogenated hydrocarbons.
Excess sealant can be removed with mineral spirit and cleaning solvent before cured. After curing, Supex 603UV may only be removed mechanically.
Supex 603UV is not suitable for the following applications:
- PE, PP, PTFE, plastics containing softeners, and bituminous substrates
- Structural glazing
The specified MS polymer joint sealant bead size should be calculated to comply with the compression and extension capabilities of the sealant in relation to the anticipated joint width due to expansion and contraction.
Supex 603UV has a movement accommodation factor (MAF) of 25%. The theoretical minimum joint width may be calculated
W = 𝑀𝑀𝐴𝐹/100+𝑀
M = expected maximum working movement of joint
MAF = movement accommodation factor of sealant
A minimum of 6mm substrate sealant bond is necessary to ensure adequate adhesion and accommodate movement. Joint depth should not less than 6mm and not greater than 10mm. Use 2:1 width to depth ratio up to 20mm in width. Backer material should be installed to prevent 3 side adhesion and to control sealant depth.
Suitable joint depth vs width:
6mm x 6mm
6mm x 12mm
10mm x 20mm
MS polymer joint sealant advantages
superior adhesion to a wide variety of materials even without primer
MS sealants exhibit good primerless adhesion to a wide range of substrates that are commonly used in construction and industry, such as PVC, aluminium, glass, steel, ceramic, plywood and many of the newly developed materials for construction.
applicable in a wide range of situations and temperatures
MS sealant can be used for a wide variety of applications. A single product can be used for waterproofing, bonding, sealing… and will adhere to different substrates at the same time. There is no need to buy a seperate sealant quality for each specific application.
great mechanical properties
MS sealant shows excellent mechanical properties: long-term elasticity, good recovery after deformation, and no fatigue effects. It can withstand vibration and thermal expansion of materials like woods and metals, accommodating tension and compression.
no bubbling in the curing process
MS sealant does not bubble on the surface at all. The surface of the sealant is kept smooth and intact. A constant and uninterrupted joint is easily achieved.
The resistance to natural weathering such as rain and UV is one of the advantages of MS sealant that allows use of the sealant outdoors – even in adverse weather. MS sealant shows no cracks after UV exposure. The elasticity of the sealant is maintained over time, even years after application.
MS sealant is easy to use: it can be extruded from cartridges with a low force even at low temperature. A continuous flow of sealant with stable viscosity is the norm. Furthermore, smoothing and tooling of the joint are easy with MS sealant.
low risk of staining
Excellent non-staining characteristics can be obtained with MS sealant. Porous substrates used in construction, such as granite and marble, can be sealed with a wide range of MS sealants with low risk of contaminating the stone surface.
overpaintable with most types of paints
Compatibility with many kinds of paint is appreciated by many users in industry and construction. MS sealant is compatible with many types of paints and coatings. MS sealant can immediately be painted over after use. The paint cures relatively quickly after a reasonable time.
- excellent elastic behaviour and durability
- relatively quick curing
- no isocyanate and no solvents
- good storage stability
Packaging: 290 ml cartridges – 24 per cartoon , 600 ml sausages – 20 per carton
Colour: White, grey and black, other colors upon request.