Heavy Duty Epoxy Urethane Joint Sealant
Vetoflex PU785 is a two component self-leveling epoxy modified polyurethane joint sealant. It can be poured directly into horizontal joints in order to form a tough resilient seal containing a limited degree of flexibility. Vetoflex PU785 can accommodate small amount of movement in expansion and contraction but can take high compressive stresses.
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Withstands steam cleaning.
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Excellent adhesion to concrete and asphaltic substrates
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Extremely resistant to chemicals and hydrocarbon
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Self-leveling to produce uniform and neat joints
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Permanent and uniform water-tight seal
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Suitable for use in wide joints
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Good mechanical properties for heavy duty limited movement applications
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Compatible for use in horizontal areas with a maximum slope gradient of 10%
- BS 5212: Part 1
- ASTM C 920, Type M, Grade P Class 12
Vetoflex PU785 is supplied in 4 Liters Kit
Qty (Liters) =( joint: width (mm) x depth (mm) x length)(m))/ 1000
Joint Width
|
Coverage |
|
|
Joint Width (mm) |
Joint Depth (mm) |
|
6 - 13 |
Equivalent to width |
|
13 - 25 |
½ of width |
|
Over 25 |
½ to ¾ of width |
Stated consumptions data are for general guidance. Actual consumption depends on the nature of substrate, method of application and wastage.
Original sealed container of Vetoflex PU785 has a shelf life of 12 months provided it is stored clear of ground in a dry shaded place below 25ºC.
Mixing
Vetoflex PU785 is supplied in pre-weighed two part packs, which requires on site mixing. Pour the hardener (PART B) into the base (Part A) pail and mix thoroughly with a slow speed drill (300-400 rpm) fitted to a flat bladed paddle for 5 minutes till a uniform colour and consistency is achieved.
Since the base and the curing agent ratio controls the ultimate physical properties like adhesion, durability and strength, one complete kit has to be mixed at a time. The side and base of the container shall be periodically scrapped with a scraper to ensure that the curing agent is properly dispersed and blended in the mix.
Application
Pour the mixed material directly into the joint from the pail. Initially fill 2/3 of the sealant, tool it properly allowing it to fill all the irregular areas inside the joint. The tooling will also allow entrapped air to escape. Then pour the balance 1/3 material and further tool it to get a smooth surface finish. The material should be used completely within the specified pot life. Once the sealant has been installed a suitable rounded tool soaked in soapy water can be used to achieve an hour glass profile. Any masking tape applied should then be removed immediately after the sealant is installed.
Cleaning
Vetoflex PU785 should be removed from tools, equipment and mixers with Vetonit Solvent XX400 immediately after use. Hardened material can only be removed mechanically.
Joint Preparation
The joint surface must be clean, dry and free from oil, loose particles, cement laitance and other contaminants which may affect the adhesion. A thorough wire brushing, grinding, sand blasting or solvent cleaning may be required to expose a clean and sound substrate. The compressible joint filler shall be cut back to expose a uniform joint depth.
Priming
Vetoseal XX777-25 should be applied to clean, dry surface prior to the installation of backer rod or bond breaking tape. The primer shall be applied by a brush in a thin coat application and shall be allowed to become tack free prior to the application of the sealant. The joint edges shall be re-primed if the sealant installation is not carried out within 3 hours of application of the primer. For obtaining a clean and neat finish, masking tape shall be applied on both the edges of the groove before applying the primer.
Recommendations
- Vetoflex PU785 is not recommended for use in vertical joints, movement joints having MAF > 10%
- Vetoflex PU785 should never be applied on damp and contaminated surfaces
- Do not over paint Vetoflex PU785 It is best to check compatibility with sealant prior painting application
- Vetoflex PU785 is not compatible for use in areas with Slope Gradient > 10%
Avoid contact with skin or eyes. During application, wear appropriate protective clothing, goggles, gloves and respiratory equipment if necessary.
In case of contact with skin, rinse with water and again wash thoroughly with soap and water. In case of contact with eyes, rinse with plenty of water and seek medical advice accordingly.
If ingested, obtain medical attention immediately. Do not induce vomiting.
Saveto endeavors to ensure that any advice, recommendations, information it may give, is accurate and correct. It cannot accept any liability either directly or indirectly arising from the use of its products, because it has no direct or continuous control over where or how its products are applied, whether or not in accordance with any advice, specification, recommendation or information given by us. Saveto has the right to change any of the specifications mentioned in the Technical data sheets upon its discretion without prior notification.
Hard copies of TDSs are printed once or twice a year, while our technical data sheets are continuously being updated as per R&D improvements and new 3rd party testing; kindly refer to our website for the latest updated TDSs.
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