Recoatable Polyurethane Finish

Product Description:

- Model:725-BS43-91

-A two pack polyurethane finish giving excellent durability and long term recoatability

-VOC less than 390g/L

Intended Uses:

-A tough cosmetic finish.

-For protection of steel structures in offshore facilities, petrochemical, power and bridge engineering.

-For protection of concrete surface.

Product Information:

Volume Solids:60%±2% Finish/Sheen： Gloss
Film Thickness and Theoretical Coverage			Min	Typical	Max
	Dryfilm Thickness(μm)		30	40	80
	Wetfilm Thickness(μm)		50	67	133
	Theoretical Coverage(m²/L)		20	15	7.5
Mix Ratio: 5.7:1(volume)7.5:1(mass)
Method of Application
Airless Spray		Recommended
		Tip size range:0.38-0.53mm
		Output pressure:≥17MPa
Air Spray		Tip size range:2.0-3.0mm
		Output pressure:≥0.4MPa
Brush/Roller		For small area only
Thinner		Not recommended. Use only in exceptional circumstances (volume 5%).
Cleaner		725-BX-28
Induction Period		Not required

Drying Information:

	-5℃	5℃	15℃	25℃	35℃
Touch Dry	4h	1h	1.5h	40min	30min
Hard Dry	48h	24h	20h	8h	6h
Pot Life	8h	6h	5h	4h	4h

Overcoating Data:

	-5℃	5℃	15℃	25℃	35℃
Overcoated by	Min Max	Min Max	Min Max	Min Max	Min Max
725-BS43-91	48h /	24h /	24h /	8h /	6h /

Storage:

Store in cool and dry conditions,Well ventilate.Keep away from hot and fire. Shelf Life: 12 months

minimum at 25℃,Subject to re-inspection thereafter.

Pack Size:

Part A: 22.5kg/17L in 20 L container

Part B: 3.0kg/3L in 6L container

Flash Point:

Part A: Greater than 31℃

Part B: Greater than 28℃

Mixed pant: Greater than 31℃

Systems and Compatibility:

Consult your Representative for the systems best suited for the surfaces to be protected.

Surface Preparation:

All surfaces to be coated should be clean, dry and free from contamination.

Newbuilding

725-BS43-91 should be applied over a recommended primer coating scheme. The primer surface should be dry free from all contamination and 725-BS43-91 must be applied within the overcoating intervals specified (consult the primer data sheet).

Areas of damage should be prepared to the specified standard (e.g Sa2½ or St3 of GB/T 8923.1-2011) and patchprimed prior to the application of 725-BS43-91.

Repair

725-BS43-91 may be applied directly over aged 725-BS43-91 following thorough fresh water washing and degreasing provided the coating to be overcoated is in an intact and tightly adherent condition. Loose or flaking coatings should be removed back to a firm edge and an appropriate primer should be used to repair the area before application of the full coat.