TECHNICAL DATA SHEET
DESCRIPTION
ProCryl MMA Topcoat is a 100% reactive, medium viscosity methyl methacrylate resin developed as a sealer over various ProCryl MMA Binder systems. ProCryl MMA Topcoat is a chemical resistant coating specifically designed for food and beverage plants, dairies, and areas having constantly wet surfaces with food and fat contamination. ProCryl MMA Topcoat is suitable for use in numerous other applications, both indoors and outdoors.
BENEFITS
- Fast cure (60 min) for rapid recoat and return to service
- Full strength in 1 hour
- VOC compliant (100% reactive)
- Can be installed over wide temperature range – even below freezing
CONSIDERATIONS
- Do not store outside in direct sunlight, storage temperature must be < 80°F.
- Maintain coating thickness at 10-20 mils to minimize yellowing and possible micro cracking. u Materials should be acclimated to the temperature of the application environment. u Humidity must be less than 95%. DO NOT coat unless floor temperature is more than five degrees over the dew point.
- If air or substrate temperature is below 40°F, ProCryl LTC (low temperature catalyst) should be used. • if <40°F, add 20 ml of LTC • if <0°F, add 75 ml of LTC • if <20°F, add 40 ml of LTC • if <-15°F, add 110 ml of LTCNote: Do not install ProCryl Resins below -20°F.
COMPOSITION
ProCryl MMA Topcoat is a 100% reactive methyl methacrylate resin.
PHYSICAL PROPERTIES
Percent Reactive 100%, zero VOC
Working Life, 50°-70°F 10 - 25 minutes, will vary w/temp. & amount of Initiator
Recoat Time 60 minutes
Viscosity @ 75°F HT: 52-78 cps; KT: 175-263 cps; UVR: 130-190 cps
Weight per Gallon 8.3 lbs (HT, KT, UVR)
Heat Resistance, dry heat 180°F, constant immersion(KT Topcoat)
Shore D Hardness HT: 75-80; KT: 65-70; UVR: 25-30
COLOR SELECTION
TOPCOAT GUIDE
1. ProCryl HT Topcoat
u Extremely abrasion resistant with high compressive strength
u High resistance to gasoline and oil
u Good resistance to tire marks
u For application on substrates with high mechanical strength
2. ProCryl KT Topcoat
u Very durable with high compressive strength
u Designed for use in food & beverage processing environments
u Temperature resistance up to 180°F constant immersion
u Excellent non-slip resistance in wet areas
3. ProCryl UVR Topcoat
u Extremely elastic floor coating with high UV resistance
u Impact-resistant and crack-bridging
u For high mechanical loads on indoor and outdoor surfaces
u For application on substrates of low mechanical strength
MIXING AND INSTALLATION
ProCryl MMA Topcoat requires the addition of ProCryl MMA Initiator to start the curing process. The amount of initiator must be adjusted to the respective surface temperature (see tables below). In order to achieve the best curing it is necessary to apply ProCryl MMA Topcoat with a short-medium nap roller. Coating thickness should be a minimum of 10 mils and maximum of 20 mils (80-160 ft
2 /gallon) over a smooth basecoat, or maximum of 25-30 mils when used as a grout coat over a textured broadcast system, depending on the profile of the base material. 100 ft 2 / gallon is average over a smooth basecoat. If the coating exceeds 20 mils over a smooth basecoat, the topcoat may remain visibly blue or yellow and surface micro cracks are possible. It is best to spread the material with a squeegee to the desired thickness, and then IMMEDIATELY back-roll and cross-roll. This will reduce the occurrence of roller marks in the topcoat. IMPORTANT: Be aware that addition of pigment to the clear resin may slightly speed up the cure process. Use a clean roller cover with each successive batch. ProREZ recommends waiting 1-2 hours between multiple topcoats. Coating work should be continued only after the complete hardening of the previous layer. Tap random areas with a hard edge tool to confirm resin is hard and not “surface dry”.
Topcoat ProREZ Coatings, LLC
P.O. Box 153, Cromwell, CT 06416-0153 877.511.3456 www.prorezcoatings.com
ProCryl MMA Topcoat
PROCRYL MMA FLOORING SYSTEMS
CLEAN UP
Clean tools and equipment with ProCryl Cleaner. Consult Safety Data Sheet for safety and health precautions.
STORAGE
Store in a cool and dry place, below 80°F, out of direct sunlight. Do not store near open flame or food. Shelf life is 6 months in the original unopened containers. After extended storage, additives and fillers can separate. Materials should be inspected for any visible signs of settlement, polymerization, or paraffin coagulation (clumps, strands). Thoroughly mix pails or drums and pour into new containers to inspect resin before use.
CAUTION
Adequate cross ventilation should be provided. Good ventilation during the application ensures cross-linking and hardening. Read, understand and follow Safety Data Sheets and Application Instructions prior to use. Use only as directed. If substrate and/or material temperature is above 90°F, DO NOT apply material.
TECHNICAL SERVICE
ProREZ is available to provide services and consultations on material selection, specification, troubleshooting, and other information on the proper repair and protection of concrete surfaces. A ProREZ Technical Representative is available to assist you. Telephone 877.511.3456 or www.prorezcoatings.com.
Temp. (°F) of Resin, Air & Floor Surface Initator by Volume (oz) per Gallon of Topcoat Pot Life (min) Cure Time (min)
40-50°F 3-4 vol. oz Approx. 13 Approx. 35
50-60°F 3 vol. oz Approx. 14 Approx. 30
60-70°F 2 vol. oz* Approx. 13 Approx. 30
70-80°F 1-2 vol. oz* Approx. 12 Approx. 30
80-90°F 1-2 vol. oz* Approx. 12 Approx. 30
Temp. (°F) of Resin, Air & Floor Surface Initator by Volume (oz) per Gallon of Topcoat Pot Life (min) Cure Time (min)
40-50°F 3 vol. oz Approx. 75 Approx. 80
50-60°F 3 vol. oz Approx. 35 Approx. 45
60-70°F 2 vol. oz* Approx. 18 Approx. 35
70-80°F 2 vol. oz* Approx. 15 Approx. 25
80-90°F 2 vol. oz* Approx. 15 Approx. 25
Temp. (°F) of Resin, Air & Floor Surface Initator by Volume (oz) per Gallon of Topcoat Pot Life (min) Cure Time (min)
40-50°F 7 vol. oz Approx. 35 Approx. 70
50-60°F 5 vol. oz Approx. 15 Approx. 40
60-70°F 3 vol. oz* Approx. 15 Approx. 40
70-80°F 2 vol. oz* Approx. 13 Approx. 30
80-90°F 2 vol. oz* Approx. 13 Approx. 30
*Do not use less than 2 oz ProCryl MMA Initiator by volume unless confirmed with jobsite testing. Consult with ProREZ Technical Services if performing mix ratio by weight instead of by volume.
Important Note: Yellowing of the resin will occur with excessive thickness or higher amounts of hardener, beginning in the range of 4 vol. oz It is advised to use lower amounts and allow for extra cure time, particularly with clear resin or very light colors.
Warranties: Seller warrants that its goods, as described on the face hereof, are free from any defects in material or workmanship. Seller makes no other warranty, express or implied, and all implied warranties of merchantability and fitness for a particular purpose are hereby disclaimed. Seller shall not be liable for prospective profits or special indirect or consequential damages. Seller’s sole liability and buyer’s exclusive remedy for breach of any warranty as expressly limited, at seller’s option, to replacement at the original F.O.B. point or refund of purchase price. Seller shall not be responsible for any claim resulting from failure to utilize product in the manner in which it was intended and in accordance with instruction provided for use of product. Any claim for breach of warranty shall be deemed waived unless buyer shall give seller written notice of such claim within sixty (60) days after delivery and shall allow seller reasonable opportunity to investigate claim and inspect product.
