HDL 202
> rust and scale remover
HDL-202 is a heavy-duty liquid alkaline, rust and scale remover. It is especially formulated for use in the removal of carbon deposits, complex metallic oxides and heat scale from hot sections of jet engines and to condition adherent scale for complete removal in subsequent processes such as scale oxidation in an alkaline permanganate bath and scale removal in an acid bath.
304 or 316 Stainless Steel Tank Unit are recommended for use.
HDL-202 is a viscous liquid blend of strong alkalies and chelants.
- Helps strip rust and paint in one operation.
- Highly effective as a remover of metallic oxides and heat scale.
- Approved for use on high-strength or high heat-resistant alloys.
- No hydrogen embrittlement.
- Can be used for quick cleaning of titanium.
-
Technical Data Sheet
- PRATT & WHITNEY : SPMC-129
- ROLLS ROYCE : oMat 173N
- GE : CO4-182
- CFM : CP-2562
- IAE : CoMat 01-417
- HONEYWELL : C04-0052 (TPE, TFE & APU engines), C04-184 (AS900 engines)
- SNECMA : DMR 70-125
- TURBOMECA : CCT LB 540
- NATO : NSN#02ERR0HDL-202
- The Canadian Armed Forces : NSN 6850-20-005-3884
For scale removal and conditioning.
A- STEEL AND HEAT RESISTANCE ALLOY
Use at a concentration of 30 to 40%, depending on the tenacity of the scale and soils to be removed. Heat the solution to 82 - 93°C (180 - 200°F). Parts to be processed are immersed for 20 - 60 minutes, preferably with agitation, followed by a thorough pressure and/or overflowing water rinse. Jet engine parts may require further processing depending on soil conditions and appropriate specification requirements.
B - TITATNIUM
Use at a concentration of 12-18%. Heat the solution to 71-88°C (160-190°F). Parts to be processed are immersed for 10-30 minutes, preferably with agitation, followed by a thorough pressure and/or overflowing water rinse.
Concentrations can be maintained by standard titration procedures that we provide.
NOTE
1) Not suitable for use on non-ferrous metals such as aluminium, zinc, etc.
2) 316 stainless steel tank construction recom-mended..
- Appearance : yellowish liquid
- Specific gravity : 1.5
- pH : (at 100%) 14