Metzger/McGuire Spal‑Pro RS 88 Polyurea, Black
- Rapid setting, 100% solids
- Hardness of Shore A86-90
- Fills and protects joints in trafficked industrial and retail concrete floors
- Other colors available
Spal-Pro RS 88 is a rapid-setting two-component polyurea polymer liquid of 100% solids content that is specifically designed to fill and protect contraction and construction joints in heavily trafficked industrial, commercial, and retail concrete floors.
In addition, this heavy-duty, semi-rigid polyurea can be used to fill random cracks in industrial floors.
When treating areas that can’t afford a great deal of downtime, Spal-Pro RS 88 is the ideal solution. Floors at 70°F that have been treated with Spal-Pro RS 88 can be reopened to full traffic in as little as sixty (60) minutes and light traffic in thirty (30) minutes.
Use Spal-Pro RS 88 with confidence on polished and stained floors. This product will fill joints and cracks, and it won’t smudge or smear during grinding or polishing. Spal-Pro RS 88 maintains a consistent color profile and resists fading and discoloration, making it an ideal solution in areas where there is concern about the overall look of the floor. Spal-Pro RS 88 is non-staining in normal slab surface conditions, so it does not exhibit the residual concrete staining often associated with other semi-rigid fillers.
When cured, Spal-Pro RS 88 is a rubberlike solid with a hardness of Shore A86-90. Unlike other softer polyureas, RS 88 will provide superior edge protection and support.
Spal-Pro RS 88 is intended for use where final temperatures are from 32°F (0°C) to +120°F (49°C).
- Spal-Pro RS 88 is not recommended for use under VCT or other non-breathing flooring systems.
- Spal-Pro RS 88 is designed for interior use and may not be suitable for outdoor applications due to thermal movement.
- Spal-Pro RS 88 may exhibit bubbling and/or compromised adhesion if concrete or ambient moisture levels are excessive.
Note: This product is intended for industrial use only. Use only in well-ventilated areas. Practice all normal job site safety precautions (clear work area, etc). Refer to MSDS and installation instructions for more information.
Spal-Pro RS 88 must be dispensed with dual-feed power dispensing equipment, or with pre-filled, dual-dispense cartridge kits. Manual dispensing is impractical due to short working life (1-2 minute gel time). Power dispensing systems should be set to a 1:1 ratio by volume. If installing in cooler temperatures, material should be maintained at a minimum temperature of 75˚ F (24˚C) for best results. We recommend the use of a 1/2” diameter (ID) static mixer with 30 or 32 elements or more for material dispensing and proper mix. We strongly recommend performing periodic ratio checks on power dispense units to ensure proper cure.
Material provided in pails should be thoroughly mixed to redistribute any settlement that may have occurred during shipping or storage. Cartridges should be shaken aggressively to accomplish same.
Pump tanks, lines and dispensing manifold should be clean and free of any residual materials remaining from previous filler installations.
Joints can be filled in one or two passes, depending upon joint depth and dispensing tip used. Preferred method is to fill from bottom to top using a dispensing tip that fits into the joint. Take care not to entrap air bubbles. Slightly overfill the joint, leaving a crowned profile, and allow to cure.
The crown may be easily razored off as early as 15 minutes after placement, depending upon temperature. We recommend testing various shave times to find the optimal shave which results in a filler profile that is flush with the floor’s surface and free of any film from material overfill. If shave time is substantially delayed or if temperatures are low, RS 88 shaving process may be more labored. Should filler cure below the floor surface (due to settlement into the void at base of joint, etc.), remove top 1/2” of filler and re-apply RS 88. Grinding/polishing operations should be deferred for one hour or more after placement. (If using Fast Pack addition, 25-30 minutes or more).
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