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Soudaflex pu 35

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Soudaflex pu 35 is a high quality, elastic, 1-component sealant based on polyurethane.

Product Type: 1K (1 component) Sealant

Compatible Substrates & Surfaces: Concrete, Metal

Cure Method: Moisture Cure

Application Method: Pneumatic Gun

Chemical Family: Polyurethanes (PU)

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Knowde Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Characteristics
  • Very easy to apply
  • Good weather resistance
  • Permanently elastic after curing
  • Very good adhesion on many materials
  • No bubble formation within sealant (in high temperature and humidity applications)
  • Can be painted with most types of paint systems

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Cure Method
Applications
  • All usual building joints with high movement.
  • Connection joints between window frames, doorframes and walls.
  • Expansion joints between many different construction materials.
  • Joints with large movement.
  • Sealing of shrinking joints in concrete floors
  • Sealing of floor joints
Direction for use

Substrates 

  • Substrates: all usual building substrates, brick, concrete, metals, ...
  • Nature: clean, dry, free of dust and grease.
  • Surface preparation: Soudaflex PU35 has good adhesion to most substrates. In critical situations or to obtain optimum adhesion, use Primer 100 on porous surfaces.
  • Always use Primer 100 on natural stone, no primer on non-porous substrates.
  • No adhesion on glass, PE, PP and PTFE (Teflon). Soudal recommends a preliminary adhesion test on every surface.

 Joint dimensions

  • Min. width for joints: 3/16”
  • Max. width for joints: 1 3/16”
  • Min. depth for joints: 3/16”
  • Recommendation sealing jobs: joint width = 2 x joint depth.

 Applications

  • Application method: With manual- or pneumatic caulking
  • Cleaning: Clean with White Spirit or Soudal Surface
  • Cleaner immediately after use (before curing).
  • Finishing: With a soapy solution or Soudal Finishing
  • Solution before skinning.
  • Repair: With the same material
Remarks
  • When painted with oxidative drying paints disturbances in the drying of the paint may occur (we recommend doing a compatibility test before application).
  • Soudaflex PU35 has a good UV resistance but can discolor under extreme conditions or after very long UV exposure. It is recommended to do a compatibility test prior to application.
  • Contact with bitumen, tar or other plasticizer releasing materials such as EPDM, neoprene, butyl, etc. is to be avoided since it can give rise to discoloration and loss of adhesion.
  • Do not apply or cure in the presence of uncured silicone sealants, alcohol or other solvent cleaners. When using different reactive joint sealants, the first joint sealant must be completely hardened before the next one is applied.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Application Temperature41 to 86°F-
BasePolyurethane--
ConsistencyStable paste--
Curing Speed (68°F / 65 R.H.)2.0mm/24h-
Curing SystemMoisture curing--
Density1.25g/ml-
Elastic Recoverymin. 80--
Elasticity Modulus85.0psi-
Elongation At Breakmin. 800-DIN 53504
Hardness (+/- 5)30.0Shore A-
Maximum Allowed Distortionmax . 35minutes-
Maximum Tension165.0psiDIN 53504
Skin Formation (68°F / 65 R.H.)50-60minutes-
Temperature Resistance-22 to 194°F-

Regulatory & Compliance

Standards and Approvals

ASTM 920 Type S. Grade NS. Class 35. Use T, NT, M, A, G, and O. Federal Specification TT-S-00230C Type II Class A ASTM C1247 10 Weeks

Environmental Clauses

Leed regulation: Soudaflex PU35 conforms to the requirements of LEED. Low –Emitting Materials: Adhesives and Sealants. SCAQMD rule 1168. Complies with USGBC LEED® 2009 Credit 4.1: Low-Emitting Materials – Adhesives & Sealants concerning the VOC-content

Specifications

ASTM C920 Class 35
TT-S-00230C
CAN/CGSB 19.13-M87

Limited Warranty

SOUDAL warrants product to be of good quality and will replace or, at our election, refund the purchase price of any products proved to be defective. Satisfactory results depend not only upon quality products, but also upon many factors beyond our control. Therefore, except for such replacement or refund, SOUDAL MAKES NO WARRANTY OR GUARANTEE, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, RESPECTING ITS PRODUCTS, and SOUDAL shall have no other liability with respect thereto. Any claim regarding product defect must be received in writing one (1) year from the date of shipment. No claim will be considered without such written notice or after the specified time interval. User shall determine the suitability of the products for the intended use and assume all risks and liability in connection therewith.

Safety & Health

Health and Safety Recommendation

Take the usual labor hygiene into account. Consult the packaging label for more information

Packaging & Availability

Packaging Type
Packaging

Packaging: 10.1 fl.oz. aluminum cartridge

Storage & Handling

Shelf Life

15 months in unopened packaging in a cool and dry storage place at temperatures between 41°F and 77°F.