Resitech SL 1500
Description
Resitech SL 1500 is a two component solvent free epoxy resin self-smoothing flooring system designed to impart a highly abrasion and chemical resistant surface to treated substrates.
It is used in situations such as:
- workshops
- manufacturing areas
- food processing areas
The smooth surface finish obtained makes a high degree of cleanliness and hygiene possible.
It is designed for use where the technical requirements for the floor surface are in excess of a high build coating, but less than a 2-3mm self-leveller.
Resitech SL 1500 is typically applied at a dft of 1.0-1.5mm.
Surface Preparation
Concrete substrates must be at least 28 days old or have a moisture content less than 5% and be clean, dry, sound and free of laitenance, oil, grease and any other surface contamination which could impair adhesion.
Existing floor areas will require mechanical abrasion to reveal concrete. Enclosed vacuum blasting equipment or vonarx type scabblers should be used. Any areas which have been contaminated with oil or grease should be treated with hot compressed air blasting equipment. This will drive out any deep-seated contamination.
Any areas of damaged concrete should be broken out and re-instated. For small areas of thin section repairs - less than 10mm in depth - resitech hd repair mortar should be used. For larger area thicker section repairs a polymer reinforced cementitious repair mortar should be used. These larger repairs will need to cure for some 5-7 days before Resitech SL 1500 may be applied.
As a general rule, any existing floor coatings must be removed prior to the application of Resitech SL 1500.
Where an existing epoxy floor coating is in good condition and well bonded to the substrate, with no evidence of damage or contamination, then the surface to be coated should be abraded to provide a mechanical key for the Resitech SL 1500. The surface should also be thoroughly degreased and allowed to dry.
For newly laid concrete which has been allowed to cure for the minimum 28 days, a light pass with enclosed vacuum blasting equipment is required. This will lightly texture the substrate and ensure that all laitance and the remnants of any curing membranes are removed. Older, more contaminated substrates will require a heavier pass with enclosed vacuum blasting equipment. Areas not accessible to blasting equipment should be prepared by a combination of vonarx scabblers, hand held diamond grinders and needle guns
All dust and deleterious matter should be removed by vacuuming prior to the application of the primer.
Any flexible joints within the concrete should be protected with masking tape and brought up through the new surfacing.
The perimeter of the area being treated, along with any grids, drains, etc., should be protected with masking tape.
Priming
The substrate must be thoroughly sealed with an application of RESITECH PRIMER PS; a two component moisture tolerant solvent free epoxy resin priming system.
RESITECH PRIMER PS is supplied in pre-weighed packages, and it is essential that all of the curing agent, pack A, is added to all of the resin component, pack B, and mixed thoroughly for 60 seconds.
The fully mixed primer should be applied immediately to the prepared substrate by brush or roller. The coverage rate will vary dependent upon the texture and porosity of the substrate, but should fall in the range of 4-6m2/litre.
Very porous substrates may require a double primer application in order to fully seal the surface.
RESITECH PRIMER PS must be allowed to cure tack-free prior to the application of Resitech SL 1500; this will take approximately 8 hours at 20oC.
RESITECH PRIMER PS must not be allowed to cure for longer than 24 hours before application of Resitech SL 1500. If this happens then the existing primer will need to be lightly abraded and a second primer application applied.
Mixing and Application
Resitech SL 1500 is a two component system supplied in pre-weighed packages. It is essential that all of the curing agent, pack A, is added to all of the resin component, pack B, and mixed thoroughly with a slow speed high torque drill and mixing paddle for sixty seconds.
The fully blended system is applied by steel trowel at the specified coverage rate and allowed to self-level. The Resitech SL 1500 is immediately and thoroughly rolled with a porcupine roller to aid the release of air and improve the surface finish achieved.
At an ambient temperature of 20oC, Resitech SL 1500 may be lightly trafficked after 24 hours, with a cure time of 48 hours being required prior to heavy trafficking.
Coverage Rate
10kg unit of Resitech SL 1500 will cover approximately 8m2 at a thickness of 1mm.
Technical Properties
- Tensile Strength: (BS 2782 pt 10) - 18N/mm2
- Compressive Strength: (BS 6319 pt 2) - 48N/mm2
- Flexural Strength: (BS 2782 pt 10) - 49N/mm2
Chemical Resistance
Resitech SL 1500 exhibits excellent resistance to a wide range of chemicals, and is fully resistant to the following:
- 10% Sulphuric Acid
- 10% Hydrochloric Acid
- Xylene
- Methyl Ethyl Ketane
- 20% Sodium Hydroxide
- Ethylene Glycol
- Trichlorethylene
- Pot Life (20oC) - 30 minutes
- Primary Cure (20oC) - 12 hours
- Full cure (20oC) - 7 days
- Application Temperatures - 5 - 35oC
Please note that cure times and open to traffic times increase considerably at lower temperatures.
Cleaning
Tools should be cleaned with a hydrocarbon solvent such as xylene before the initial cure has occurred.
Health and safety
It is recommended that barrier cream, gloves and overalls be worn when using Resiflow SL. For full details please refer to the appropriate health and safety data sheets.
