NSXchnk said:
thankyou very much Woodwork! recieved mine today, what should I use to clean it since it's made of titanium? one nsxer said he used 409, i read the back of the bottle and it said not to use on aluminum..
just checking, rather be safe than sorry..
Cleaning Titanium Equipment
The efficiency of titanium surfaces can usually be maintained without elaborate cleaning procedures. There is generally no need to clean for corrosion protection as is sometimes required with stainless steel, nor does the thin oxide surface film in any way combine with cooling water to form heavy mineral deposits as sometimes occurs on copper based alloys.
Marine fouling of heat exchanger surfaces is sometimes controlled by chlorine injection. Titanium surfaces are totally unaffected by such treatments. Titanium surface condenser tubing is also kept clean in this way as well as by continuous cleaning systems utilizing rubber balls or nylon brushes, without deleterious effects.
Acid Cleaning
Acid cleaning of titanium surfaces to remove deposits is sometimes necessary. Conventional acid cleaning cycles can be used provided proper inhibitors are present. Organic inhibitors such as filming amines are not effective with titanium. Ferric ion as ferric chloride is very effective as an inhibitor for titanium in acid solutions. As little as 0.1 percent (by weight) ferric chloride will inhibit corrosion of titanium by hydrochloric acid, for instance. At ambient temperatures, as much as 25 percent (by weight) HCl inhibited with FeCl3 can be safely used on titanium.
Nitric acid is an excellent passivating agent for titanium and may be used alone or with hydrochloric acid to clean titanium surfaces. See Table 1 for a more complete listing of recommended cleaning media, and proper inhibitor additions.
Table 1. Typical cleaning solutions for titanium equipment
Cleaning Media
Temperature Range
Concentration (wt.%)
Inhibitor Additions
Hydrochloric Acid
Up to 150°F (66°C)
Up to 10
1000ppm FeCl3 or
1000ppm CuCl2 or
500-1000ppm CrO3
Sulphuric Acid
Up to 150°F (66°C)
Up to 10
As above
Phosphoric Acid
Up to 150°F (66°C)
Up to 10
As above
Citric Acid
Up to 200°F (93°C)
Up to 25
Naturally Aerated
Nitric Acid
Up to 200°F (93°C)
Up to 65
None
Sodium Hydroxide
Up to 200°F (93°C)
Up to 15
1% Sodium Chlorate or Hypochlorite
Brush Cleaning
The use of carbon steel wire brushes to remove deposits from titanium is not recommended. Likewise, carbon steel pipe or tube should not be used to clean out plugged titanium tubes. Pickup of imbedded or smeared iron particles from steel can render titanium susceptible to corrosion when the unit is placed back in service. Stainless steel or titanium wire brushes and pipe are preferred. Careful utilization of titanium’s unique properties will provide many years of maintenance-free service for fabricated equipment. Misapplication of titanium, the use of improper cleaning procedures and other abuses can lead to failure. On the other hand, careful use of some preventive measures, particularly those concerned with corrosion and galling resistance, can significantly extend the useful life of titanium equipment.
Source: Timet