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Sealants & Joints
Vetoflex PU780

High performance, elastomeric, single component polyurethane sealant
(Formerly known as Saveto PU1)

Uses
Primerless sealing pre-cast panel joints and expansion joints
As a general elastic adhesive for materials with dissimilar properties and thermal expansion coefficients
Movement and static joint sealing in various construction industry requirements
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Technical Data Sheet
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Method of Statement
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MSDS
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Technical Information
Product Description

Vetoflex PU780 is a one part, moisture curing, low modulus elastomeric joint sealant based on polyurethane. Suitable for movement and connection joints for indoor and outdoor applications. Vetofl ex PU780 is a paintable weather resistant sealant that has versatile usage both as a sealant and a general adhesive in the construction industry for various substrates including concrete, steel, wood and many others.

Advantages
  • Weather resistant, suitable for External & Internal applications
  • Easy application using caulking gun
  • Paintable with non-solvented or water-based paints after curing in static joints (i.e. around door perimeters)
  • No crack or craze under UV exposure
  • Non-sag and non-staining
  • Does not require primer and exhibits tenacious adhesion to most building materials
  • Excellent movement accommodation
Packaging & Coverage

Vetoflex PU780 supplied in 600 mL Sausages

Joint Width (mm) - 10 ; Joint Depth (mm) - 8 ; Lenght Filled / Sausage (m) - 7.5

Joint Width (mm) - 15 ; Joint Depth (mm) - 8 ; Lenght Filled / Sausage (m) - 4.5

Joint Width (mm) - 20 ; Joint Depth (mm) - 10 ; Lenght Filled / Sausage (m) - 2.5

Joint Width (mm) - 25 ; Joint Depth (mm) - 12 ; Lenght Filled / Sausage (m) - 1.6

Joint Width (mm) - 30 ; Joint Depth (mm) - 15 ; Lenght Filled / Sausage (m) - 1.3

Shelf Life & Storage

Original sealed container of Vetofl ex PU780 has a shelf life of 12 months provided it is stored clear of ground in a dry shaded place below 25ºC.

Application Information
Instructions for use

Joint Design

Standard design dimensions for concrete elements as per DIN 18 540 /table 3:

Joint Distance (m) 2 2-3.5 3.5-5 5-6.5 6.5-8
Design Joint Width (mm) 15 20 25 30 35
Minimum Joint Width (mm) 10 15 20 25 30
Joint Depth 8 10 12 15 15

Priming

The use of a primer is generally not required when using Vetofl ex PU780. However where hard to bond substrates such as PVC or where highly porous substrates are in question, please contact Saveto local office for assistance on suitable primer choice.

Application

Cut and remove the end of the sachet and place sachet in the Saveto bulk gun. Fit the nozzle and cut at 45 degrees to a suitable size for sealing the joint. Extrude the sealant firmly in to the joint. Tool flush within 5 minutes of application to ensure good contact between the sealant and the substrate.

Cleaning

Vetoflex PU780 should be removed from tools, equipment and mixers with Vetonit Solvent XX400 immediately after use. Hardened material can only be removed mechanically.

Surface Preparation

Clean all joint surfaces and remove any dust, unsound material, plaster, oil, paint, grease, corrosion deposits or algae. Roughen the surfaces, remove any laitence and expose aggregate by light scabbling or grit-blasting. Oil and grease deposits should be removed by steam cleaning, detergent scrubbing or the use of a proprietary degreaser. Any expansion joint filler must be checked to ensure it is tightly packed and no gaps or voids exist at the base of the sealing slot before positioning a bond breaker. The use of a bond breaker is not required in expansion joints containing cellular polyethylene joint filler, backing rod (Vetofl ex PBR). For construction or contraction joints a bond breaker tape or back-up strip must be used.

Where a particularly neat finish is required, mask the face edges of the joint before sealing and remove immediately after tooling is completed.

Additional Information
Health & Sefety

Vetoflex PU780 is not classifi ed hazardous. Contains isocyanate.

For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safety-related data.

Important note

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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Uses
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Contact us
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Saudi Vetonit Co. Ltd. (SAVETO)
P.O. Box 52235 Riyadh 11563, KSA
Toll: (+966 11) 265 3334
Fax: (+966 11) 265 0936
Sales
800 124 9009
Fax: (+966 11) 265 0718
Email: sales@saveto.com
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