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HYPERSEAL-EXPERT-150 One component, polyurethane-based, low modulus joint sealant - rbbco

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HYPERSEAL-EXPERT-150 One component, polyurethane-based, low modulus joint sealant


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CHARACTERISTICS

HYPERSEAL-expert is a novel low modulus expansion joint sealant, especially formulated to ensure bubble free cure even at very high temperature and humidity climatic conditions. The product displays excellent thixotropic allowing its use even in very large expansion joints. It cures by reaction with atmospheric humidity to produce a joint sealant with a 50% joint movement accommodation factor and excellent adhesion on substrates traditionally problematic for PU sealants, e.g. glass, aluminum, steel, polycarbonate, etc. The extrusion rate and tooling of the sealant remain the same throughout a very wide range of temperature and humidity conditions.

COMPLIANCE WITH:

  • ISO-11600
  • Type F – class: 25LM
  • DIN-18540-F
  • ASTM C920
  • S. Federal Specification TT-S-00230C
  • Type II Class A

Hyperseal EXPERT is CE certified according to EN 15651-1 (Sealants for Facades) and 15651-4 (Sealants for Floor Joints with Foot traffic).


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Category Tag

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Sealing joints in:

  • In-situ concrete
  • expansion concrete plates
  • precast panels
  • brick and block work
  • water tanks and swimming pools
  • metal frames
  • aluminum windows and panels
  • irrigation channels
  • glass
  • granite & marble

LIMITATIONS

  • Not recommended for direct application on unsound substrates. In this case the substrate must be primed with MICROPRIMERTM, which will re-enforce the concrete and produce a strong durable substrate for sealant application.
  • Highly porous substrates, dusty surfaces or poorly compacted concrete, must have their porous bond area surfaces thoroughly sealed to avoid the possibility of air bubbles being blown into the uncured sealant if the substrate temperature rises.

FEATURES & BENEFITS

  • No bubbling/swelling upon curing in difficult climatic conditions
  • Excellent Thixotropy
  • Excellent adhesion on almost any type of surface, with or without the use of special primers
  • Excellent extrusion, tooling and storage stability over wide range of climatic conditions
  • Excellent chemical resistance, suitable for sealing joints in swimming pools and chemically treated water
  • Low modulus, joint movement accommodation50%
  • Microorganism and fungus resistant
  • Excellent heat resistance, suitable for application where exposure to temperatures >60°C take place
  • Resistance to cold: The sealant remains elastic even down to -40 oC

APPLICATION PROCEDURE

Clean joint thoroughly, and ensure that no oil, grease and wax contaminants, silicone remains are present.

For many applications, primer is not required. In the case of application on very porous substrates, bond area surfaces thoroughly to avoid the possibility of air bubbles being blown into the uncured sealant if the substrate temperature rises. The recommended primer is MICROPRIMER.

Apply backing material such as open cell polyurethane or a closed cell polyethylene backing rod. Although both types of backing rod are recommended care must be taken when using the closed cell polyethylene rod that the outer skin not be punctured as in rising temperature conditions it may cause bubbling. Backing rod application is important as it ensures that the correct width to depth ratio is achieved provides a firm backing against which the sealant can be tooled off. Slide the sealant into the applicator gun, cut off the very end of the sealant packaging and fit the gun with the nozzle that has been cut to deliver the right bead size. Extrude the sealant into the joint ensuring that no air is trapped in the joint. Tooling is recommended immediately after the application of sealant. The ratio width to depth should be 2:1 subject to a minimum depth of 10mm.

PACKAGING

600cc sausage. 300 cc cartridge

SHELF LIFE

12 months minimum in the original packaging when stored in dry places and at temperatures of 5-25 oC.  Once opened, use as soon as possible.

CONSUMPTION

Linear meters per 600cc sausage:

 

WIDTH

 

DEPTH

 

5mm

 

10mm

 

15mm

 

20mm

 

25mm

5mm 24 12
10mm 4 3 2.4
15mm 1.6

 

TECHNICAL SPECIFICATIONS

PROPERTY UNITS METHOD SPECIFICATION
Specific weight gr/cm3 ASTM D1475 / DIN 53217 / ISO 2811,

@ 20 oC

1.45
Tack free time, @ 77 oF (25

oC) & 55% RH

hours 2
Cure Rate  

Mm/day

 

2-3

Service temperature oC -40 to 80
Hardness Shore A ASTM D2240 / DIN 53505 / ISO R868 ±27
Modulus at 100% elongation  

(N/mm2)

ASTM D412 / EN-ISO-527-3 0.3
Elongation % ASTM D412 / EN-ISO-527-3 >700
QUV Accelerated Weathering Test(4hr UV, at 60oC (UVB- Lamps) &

4hr COND at 50oC)

ASTM G53 Passed

(After 2000hr).

Thermal Resistance (100 days, 80°C) EOTA TR011 Passed
Toxicity No restrictions after full cure
Resilience % DIN 52458 >90
Hydrolysis (8% KOH, 15 days @ 50°C) No elastomeric property change
Hydrolysis (H2O, 30 days- cycle 60-100°C) No elastomeric property change
HCl (PH=2, 10 days @RT) No elastomeric property change
Adhesion to concrete kg/cm2

(N/mm2)

ASTM D4541 > 20

(> 2)

 

 

The product is used as a single-component, polyurethane-based joint sealant for façade elements and for walkways.

Essential characteristics Performance Harmonized technical specification
Reaction to fire Class E EN ISO 11925-2
Elastic recovery (%) >70% EN ISO 7389
Resistance to flow (mm) ≤3mm EN ISO 7390
Tensile properties – secant modulus- at 23oC ≤0.4MPa EN ISO 8339
Tensile properties – secant modulus- at -30oC ≤0.9MPa EN ISO 8339
Tensile properties at maintained extension NF EN 8340
Adhesion/cohesion properties at variable temperature NF EN ISO 9047
Loss of mass/volume ≤10% EN ISO 10563
Tensile properties at maintained extension after immersion in water (4 days) NF EN ISO 10590
Tensile strength (movement capacity 50%) NF EN ISO 8340
Outdoor Requirements:
Tensile properties at maintained extension after immersion in water (28 days) NF EN ISO 10590
Tensile properties at maintained extension after immersion in saltwater (28 days) NF EN ISO 10590
Adhesion/cohesion properties after exposure to heat, water and artificial light through glass NF EN ISO 11431

 

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