FUTUR-MASTIC EXPERT BUILDING
LOW ELASTICITY MODULE POLYURETHANE PUTTY FOR SEALING ACTIVE JOINTS AND CRACKS IN HIGH HUMIDITY CONDITIONS
Low modulus of elasticity putty for active expansion joints, which has been specially formulated to avoid bubbles during curing even in conditions of high temperatures or high humidity. The product has excellent thixotropy, allowing it to be used even in large expansion joints. Moisture curing forms an elastic sealant with a movement accommodation factor of 50% and excellent adhesion and grip even on supports traditionally problematic for polyurethane putties such as aluminum, iron, polycarbonate, etc. Its workability and gun extrusion is excellent regardless of temperature or humidity conditions.
• Continuous bubble-free curing under severe weather conditions.
• Excellent thixotropic properties.
• Excellent adhesion on almost all supports, with or without the use of special primers.
• Excellent workability and gun extrusion even at low temperature.
• Low modulus of elasticity with a movement accommodation factor of 50%.
• Great resistance to attack by fungi and microorganisms.
• Excellent heat resistance, suitable for applications with exposure to temperatures > 60ºC.
• The product is resistant to cold and remains elastic at temperatures below -40ºC.
CHEMICAL RESISTANCE DATA:
Hydrolysis (Water, 30 days, cycles from 60 to 100 ºC): No changes in elasticity
Hydrolysis (8% in potassium hydroxide, 15 days at 50 ºC: No changes in elasticity
Hydrolysis (Hydrochloric Acid, pH: 2, 10 days at RT: No elasticity changes
Before applying the product, check that the support is clean and free of traces of oil, grease, silicone, contaminating waxes or soil materials. If repair is needed, apply appropriate repair mortars.
It is necessary to start from a porous concrete support, without grout and free of curing liquids. Minimum compressive strength of concrete: 15 N/mm2. Minimum tensile strength of concrete: 1 N/mm2.
If in doubt, carry out a test before application.
In most applications no primer is required. We recommend doing an adhesion test beforehand. If applied to very porous supports, a sealant must be used to prevent bubbles from forming.
Form bellows and joint bottom to control the depth of the sealing.
Apply the product avoiding air being trapped in the joint.
Handle immediately after application.
Use width/depth ratios of 2:1, with a minimum depth of 10 mm.
Curing time: 2-3 mm/day.
Once the container is opened, we recommend its complete consumption.
Stable for 12 months from its manufacturing date, in its original, well-closed and undamaged container. Store in a dry and cool place at temperatures between +5ºC and +25ºC.
To clean materials and utensils, use soapy water before the product hardens. Once the product has hardened it can only be removed by mechanical means.
• Very useful in all types of construction companies, quick repair contracts, general masonry, community maintenance, building repair and restoration, high-resistance epoxy industrial flooring, etc.
Application as:
• Sealing active joints and cracks, grouting concrete walls, joints in concrete slabs, prefabricated panels, brick or block work, marble and granite.
• Water tanks, canals, buried walls, basements, elevator pits, etc.
• Sealing in panels, metal or aluminum windows, glass, granite, sealing in ventilation units, air conditioners, door frames, metal or aluminum panels or windows, tanks, pipes, etc.
For other supports we recommend carrying out tests to verify their adhesion.
Limitations:
• Do not apply on unsanitized supports. In very porous supports, with sandy or loosely compact concrete, bubbles may appear; it is recommended to properly seal the floor before applying the product.
• It generally supports repainting, but we recommend a prior test.
• Not recommended for leaving exposed to UV. It has to be painted after fully curing with some quality acrylic or polyurethane paint.
Format: 600ml sausage
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