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PRIMABUILD – ST

Two-pack surface-tolerant epoxy mastic, high solids amine adducts cured epoxy primer/paint which gives high film thickness at one coat. This product gives outstanding corrosion resistance, abrasion resistant, high chemical resistant. It can be used as mastic primer or finish paint for structural steel and anti-chemicals flooring even on steel where blast cleaning may not be possible

Properties and Areas of Use:

  • Tough hard wearing film.
  • Good chemical resistance.
  • Excellent water resistance.
  • Used with low slip additive for floors and decks.

Technical Coating Data @ 25 °C for mixed material:

Finish:                                                        Semi-gloss

Color Range:                                             Grey, Red or White

Solids Volume:                                         85 ± 2%

Dry Film Thickness Range:                   100-300 µm

Theoretical Spreading Rate:                  8.5 m² / L @ 100 microns DFT (loss factors will                                                                                               apply in practice)

Surface Dry:                                              4 hours

Recoat Interval:                                        12 hours minimum
                                                                      7 days maximum

Complete Cure:                                          7 days
Pot Life:                                                       2 hours
Flash Point:                                                 27°C
Shelf Life:                                                     12 months (stored in a cool dry place)

Mixing Ratio by Weight:                          4 Base component
                                                                       1 Activator Component

VOC:                                                              316 g/L

Film Thickness and Spreading Rate:

                                                              Minimum                  Maximum                           Typical
Film thickness, dry (µm):                          100                              300                                    200
Film Thickness, wet(µm):                          118                               353                                    235
Theoretical Spreading Rate(m2/L)          8.5                               2.83                                  4.25

Suitable Surfaces:

  • Steel and non ferrous metals properly prepared and blast cleaned to ISO-Sa2½
  • Concrete free of contamination, dust and efflorescence, and properly prepared

Bare Steel:

Cleanliness: Blast – cleaning to Sa2 1/2 (ISO-8501-1:2007). Power tool cleaning to min. St2 (ISO 8501-1:2007) may be acceptable, subject to exposure conditions.

Shop primed Steel:

Clean, dry and undamaged approved shop primer.

Coated Surfaces:

Clean, dry and undamaged compatible primer .

Other Surfaces:

For aluminum substrates , thorough washing and sweeping with a nonmetallic blast medium is  required.

Application Conditions:

Substrate temperature should be 10°C or above for application and during cure and a minimum of 3°C above the dew point. Adequate dry air ventilation is recommended for optimum drying.

Application Information:

Thinning should only take place after the two components have been thoroughly mixed.

Brush and Roller:

Thin if required with 0-5% Paint Thinner Colorama TH907EP.

Conventional Air Spraying:

  • Thin with 5-25% Paint Thinner Colorama TH907EP, as required.
  • Tip size – 2.0 mm.
  • Tip pressure – 60 psi (0.4Mpa) approximately.

Airless Spraying:

  • Thin with 0-20% Paint Thinner Colorama TH907EP, as required.
  • Tip size – 0.58-.79 mm approximately.
  • Tip pressure – 2100 psi (15Mpa) approximately.

Cleaning Thinner:

Equipment should be cleaned immediately after use with Paint Thinner Colorama TH907EP.

Drying time:

Drying times are affected by air ventilation, temperature, film thickness and number of coats.

Substrate Temp.                                          10°C                         25°C                             40°C
Surface Dry:                                                     8                                4                                     2
Through Dry:                                                   16                              8                                      6
Dry to recoat, minimum:                               24                             12                                    8

The given data serve as guideline only. The actual drying time differs according to film thickness, ventilation, humidity and underlying paint system.

Typical paint system:

  • PRIMABUILD – ST 1 x 200 µ
  • URELUX 1 x 50 µ

Storage:

Keep the containers in a dry, cool, well ventilated space and away from source of heat and ignition. Containers must be kept tightly closed.

Handling:

Handle with care. Stir well before use.

Packing Size:

5 L & 18 L

Summary Safety Information:

  • Avoid inhalation of spray mist and skin contact by the use of masks, gloves and other personal protection. Eyes should be cautiously washed with water or proprietary wash, and medical attention obtained. Skin should be thoroughly washed using a cleanser and soap and water.
  • Product is flammable.
  • No sparks or flames.
  • No smoking.

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