FARCOFLEX HR
Highly Resistant Polyurethane Joint Sealant
Product Description
- FARCOFLEX HR is a high quality, moisture curing, one component sealant based on polyurethane.
- FARCOFLEX HR is especially intended for the joints having to resist to chemical aggressions
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Product Description
- FARCOFLEX HR is a high quality, moisture curing, one component sealant based on polyurethane.
- FARCOFLEX HR is especially intended for the joints having to resist to chemical aggressions
Standard Compliance
- ISO 11600 F- 25 LM
- SNJF 1 CATEGORIE
- ASTM C920, TYPE S, GRADE NS, CLASS 25
Technical Data
Base polyurethane |
Consistency thixotropic paste |
Curing system moisture curing |
Density 1.17 g/ml |
Slump none |
Shore-A hardness 35° (3sec-ISO868) |
Application temperature range +5°c to +30°c |
Temperature resistance -30°c to +90°c |
Tack free time 24 h (23°c, 50% R.H) |
Smoothing time 40 min (23°c, 50% R.H) |
Skinning time 75 min (23°c, 50% R.H) |
Curing speed 2.5mm/day (23°c, 50% R.H) |
E- Modulus at 100% ≈ 0.6Mpa |
Elongation at break >500% |
Constraint at break ≈1.35Mpa |
Elastic recovery >90% |
Chemical resistance
(After 14 days immersion at 21°c)
Clearwater, wastewater, saltwater, manure, gas oil, petrol without lead , synthesis oil , phosphoric acid to 10% , hydroxide of sodium to 10% , ammonia to 10%, oxygenated water to 10 volumes, methanol, dispersed detergents. | Very good |
Hydrochloric acid 10%, xylene, white spirit. | Good |
Acetic acid to 10%, javel water to 2.6% of active chlorine, acetone. | Weak |
Formol to 10%, alcohols, concentrated acids, amine, glycol ethers, chlorine, esters. | Bad |
Uses
- Movement and connection joints in floors of ware- houses and production Ares, pedestrian and traffic areas, parking decks, car parks, and filling- stations.
- Expansion and sealing joints on surfaces in the food industry.
- Joint in waste water and sewerage treatment plants, filtration and aeration tanks.
Advantages
- Indoor and outdoor applications
- Suitable for all climates
- Less solvent content
- Movement capacity 25%
- Good adhesion to most construction materials
- Fungicide
- None yellowing and none bubbling
- Very good mechanical and chemical resistant
- Abrasion resistant
- Resist permanent deformation
Method of Use Surface preparation
- Joint walls must be sound, clean, dry, and free from oil and grease. Curing compound residues and any other foreign matter must be thoroughly removed, install bond breaker to prevent bond at the base of joint.
- Priming is not usually necessary. Most substrates only require priming if testing indicates a need or where sealant will be subjected to water immersion after cure.
- New concrete must be minimum of 28 days old. Substrates must be dry; application in wet or damp joints will cause bubbling of the material.
Mixing
FARCOFLEX–HR is one component and requires no pre-blending. It should be used directly from the container.
Application
For good performance, it is essential that the sealant is only bonded to the two facing sides of the joint to achieve this, install a backup material (closed cell polyethylene or open cell polyurethane foam).
Apply the sealant in a continuous operation, making sure all air pockets or voids are eliminated. Tool the sealant with light pressure to spread the material against the joint surfaces.
This operation should be made with dry spatula before skin formation occurs.
Cleaning
Material: Immediately with solvent
Hardened sealant: can only be removed mechanically
Hands: soap and water
Curing
FARCOFLEX–HR requires no special curing
Joint Dimensions
Joint width should be 4 times the expected joint movement, the depth of the sealant should be ½ the width of the joint. The maximum depth is 15 mm. Installation of FARCOFLEX–HR deeper than what is recommended can cause bubbling or in complete curing of the material.
Minimum depth: 6mm
Minimum width: 6mm
Maximum width: 30mm
Coverage
Meter per 600ml foil bag | M.liter per meter | Joint size(mm) |
16.66 | 36 | 6×6 |
10 | 60 | 10×6 |
7.7 | 78 | 13×6 |
3 | 200 | 20×10 |
2 | 300 | 25×12 |
1.33 | 450 | 30×15 |
Limitations
- Limited adhesion without primer on Copper, UPVC, PMMA, and polycarbonate.
- Do not use to seal swimming pools, on bituminous substrates, natural rubber, EPDM.
- Do not apply in or damp joints, as this can cause bubbling within the sealant.
Packaging
FARCOFLEX–HR is supplied in 600 ml foil bags.
Storage
Store FARCOFLEX–HR in dry condition and at temperatures between 5°c to 30°c.
Shelf life
9 month in original closed packing.
Safety and Handling Precautions
Apply the usual industrial hygiene.
Prevent contact with skin, eyes or clothing. Wash thoroughly after handling. Do not take internally.
Technical Service
The SHIMISAKHTEMAN Technical Service Department is available to assist you in the correct use of our products in the field.