PRODUCTS

Optimus 5200 EX Poly♦Urea

Description:  High Solids Aliphatic Roll-Down Coating

5200 is a 87% solids, two component, Aliphatic MDI and multifunctional polyurea aspartic amine  blend  specifically  designed  as  a pure polyurea slow system roll-down.  The EX is the designation for the 5200 Extended Cure providing additional working time compared to the 5200 Fast Set product. The polymer structure is very clear and may be pigmented, is non-yellowing, very tough, excellent color retention, good chemical resistance with excellent adhesive properties. 5200 EX is a reactive two component system highly resistant to staining and marking.

The 5200 EX "roll-down" polyurea is used as a clear finish coat with good elongation and flexibility. The 5200 EX aliphatic product  conforms  to  the  requirements of  the USDA  for  incidental  food  contact  and  is formulated to be non-color changing, abrasive resistant,  non-brittle,  flexible,  quick  set  with impact resistance.  

Unique Characteristics:

5200 EX is a unique Aliphatic Polyurea/Aspartic that has extended working time allowing for easier applications in areas where the faster version would not be appropriate or would set to quickly. This product can be supplied with a  non-skid additive that is incorporated into the product while the product is in the liquid state. The aggregate is a special plastic aggregate from Madison, “SSR” aggregate.  

General Physical Characteristics

General Physical Characteristics

Preparation:

Concrete must have a minimum 28 day cure prior to application.  Remove any curing agent, form release materials, oils, wax, moisture or any material that may affect bonding.   Clean and wash to remove contaminants and maintain pH 8.0-11.0. **Provide rough profile minimum 2 mils. Review  ASTM  D4259  Abrading  Concrete  and  ASTM F1869 Measuring Moisture Vapor Emission.  Seal/repair all bug-holes, cracks and spalls, see Madison data sheets on 820, 4010.

Note:    High  Tensile,  very  hard  concrete  with small  aggregate  is  difficult  to  grind. It is important to observe the result (appearance) of grinding this type of concrete.     It may be necessary to grind this type of concrete with a rougher dry diamond blade(s) to assure a good profile.

When coating this type of concrete with the 5200 and added pigment, add additional  Xylene  to  the mixed 5200/pigment. It is suggested that about 12-14 ounces of Xylene be added to the mix for a gallon (only for high tensile concrete). Check the penetration of the 5200/pigment to assure that the product is getting  a  “bite’  to  the hardened or high tensile type of concrete.

Test The Hardness Of Concrete:   The following hardness tester is available at a reasonable cost; HT 225A Concrete Compression Test Hammer/Concrete Hardness Tester (Schmidt equivalent) The low cost HT225A Concrete Compression Test Hammer/Concrete Hardness Tester (Schmidt equivalent) is designed specifically for the non-destructive testing of concrete structures. Conforms to ISO, ASTM, BS, EN, DIN, NFP, UNI

Colors:     

Tan, Wheat/Straw, Pearl Gray, Mist Gray, Medium Gray, and Black. White is also available for adding to the above colors as desired.

Application: 

Application  range;  45°F  to  90°F. Apply the product using a notched squeegee or similar squeegee to move the product over the application area. *Hot surfaces may accelerate gel time of the product.  *High Humidity will accelerate the gel time of the product. Product should be back-rolled using a short nap roller, about ¼” to  3/8”. **Apply in thin films from 5,8 or 10 mils per coat. Do not apply thicker than 10-12 mils at one time. Recoat Time;  apply a second coat as soon as the first coat can be walked on, 1 to 2 hours. If recoat window is exceeded, sand lightly   to produce a profile, wipe with acetone and re-coat.

Curing Time:

Approximately 1.5 to four hours for low  foot  traffic volume. Cure  5  to 8  hours for heavier foot traffic. Test surface cure to be sure surface  is  ready  for  vehicles  before  allowing access. Cure is affected by high humidity.

EX Set 5200 version may take a little longer to set in very dry or low humidity conditions and may require one or two days before vehicle  traffic  may  have  access  to  the coated area.

Cold Temperatures: 

When environmental conditions are cool or cold and the ambient temperature is about 50 degrees F, the 5200 EX cure will slow down. Although the polyurea product does slow, it will continue to cure but will take longer to develop it’s hardness.  For applications in reduced temperatures starting at around 50F use the 5200 Fast Set.  The 5200  Fast Set cure will not slow down as much as the 5200 EX product and the Fast Set will develop physical properties, hardness, etc. sooner than the EX will in cold conditions.