Wall Coating Systems
Systems designed to protect wall substrates during facility operations are often more difficult to design that flooring scenarios. SeamTek™ coatings systems have proven to be the most durable coatings in the industry. We take pride in our ability to provide pin hole free, sustainable dense surfaces in varied Ceiling Coatedenvironments. Again durability is the goal.
Epoxy systems basically take three forms; standard coatings, fiberglass reinforced systems and high build aggregate loaded systems for heavy use.
Urethane systems are typically used as standard coatings or fiberglass reinforced systems.
Hybrid systems utilizing cementitous underlayment and some combination of epoxy and/or urethane are also available as functional options.
About Epoxy and Urethane coatings:
The advantages of 100% solids epoxies over solvent or water based formulations are: a) a safer work place b) higher build on the walls (can achieve a DFT of 10-12 mils or more) c) improved molecular cross linking for increased hardness and chemical resistance d) higher gloss and gloss retention; all of which result in improved life cycles and durability. The primary disadvantage is a shorter working time which results in higher cost. Water based technology simply does not perform at the same level for a number of reasons.
100% solids urethane coatings are a newer technology that has come in favor in the last decade. All application principle are comparable to epoxy coatings but the urethane resins out perform epoxies in every aspect. The primary advantages of urethane are increased hardness which gives higher gloss and gloss retention than epoxy, increased chemical resistance to sanitizing solutions, improved abrasion resistance and increased life cycles. The primary disadvantage of urethane coatings is that the working times are very short and require more labor and materials to install and the resin cost is roughly twice that of 100% epoxy materials.
Parging the substrate:
There is a move to replace drywall with more durable "board" products in an attempt to reduce water sensitivity and to increase impact resistance. Some of these products do not have smooth surfaces and therefore when finished do not present a finish that is either aesthetically acceptable or easily cleaned. Consequently they have begun to parge the surface with an overlayment to create a smoother finish. We have had a high level of success using a Portland based latex mixture filled with fiberglass strands. This product is BOCA code approved for dry stacked CMU walls which speaks to it's strength, durability and it can be made smooth. It does require a skim coat of block filler to fill surface porosity followed by the usual primer and two coat finish; either epoxy or urethane. Parging is also used to provide a smooth finish on CMU walls in conjunction with the standard finish protocol. The parging process is time consuming and needs cure time between the latex parge and the final coating process. The finish characteristics and performance quality is still the equivalent of the coatings referenced above.
Hybrid wall systems are custom designed for special projects.
|100% solids, low VOC epoxy resin system that is 10-12 mils DFT|
|Fiberglass reinforced, low VOC epoxy resin 30-35 mils DFT|
|100% solids urethane system that is 10-12 mils DFT|
|Fiberglass reinforced, low VOC Urethane resin 30-35 mils DFT|
|Epoxy aggregate loaded low VOC, nominal 1/8" thick|