DURETHANE® Polyurethane System Form P-138 (9/90 ... - BAPS

Caution: The use of DXR 81 Accelerator will result in shorter pot life and as the amount
of DXR 81 is increased, the degree of gloss is decreased.
Flattening Agent for Durethane:
Use Flattening Agent (DX 685) DURETHANE® Polyurethane as specified in the chart
below:
DU Color or Clear 60° Gloss Meter DX 685 DU Hardener
32 oz. Flat 0-5° 42 oz. 32 oz.
32 oz. Eggshell 20-30° 37 oz. 32 oz.
32 oz. Semi-gloss 50-60° 30 oz. 32 oz.
When DX 685 is added, no reducer is needed in this system.
Note: The amount of film build and application procedure can affect the gloss level.
Skydrol Resistance:
When resistance to Skydrol Hydraulic fluid and other extremely harsh chemicals is
required, such as commercial and high performance aircraft and certain chemical
haulers, the DXU 790 Activator used in the DURETHANE intermix color formulation
must be replaced on an equal weight basis with DXU 789 Activator. NOTE: This
applies only to solid colors. DXU 789 Activator should never be used in metallic
formulations.
SPRAY EQUIPMENT
Tests have shown these finishes to be versatile with pressure feed, airless, siphon
feed, and HVLP spray gun systems. Whatever application method is used, it is
recommended that a test panel be used to adjust the equipment to assure that proper
atomization of material is attained.
Suggested starting points for air pressure adjustments are:
Pressure Pot System:
Siphon System:
Airless System:
HVLP Systems:
8 lbs. at pot
45 lbs. at the gun
45 - 50 lbs. at the gun
30 - 40 lbs. on a 25 -1 pump pressure
gauge
0.013 orifice tip
15" fan
10 lbs. max atomizing air at tip
4 Form P-138 (9/90)