Palladium Electroless applies a dense pore-free coating of Palladium to virtually all base metals without the use of current. Coatings of 5-12 millionths of an inch are produced in about 30 minutes from an acid room temperature solution. A Palladium Electoless coating will protect a surface from tarnish and keep it easily solderable for long periods due to the low rate of diffusion of silver, copper, etc., into palladium.

Palladium Electroless, followed by Neutral 24k Gold Solution, produces a tarnish and corrosion resistant surface that solders easily, even after long periods of storage. This finish over silver will withstand 45 minutes in an ammonium sulfide test chamber.

Palladium Electroless is suggested for:

        ►   Printed Circuits

        ►   Headers

        ►   Silver and Silver Alloy Contacts

        ►   All Applications Where Tarnish-Free Electrical Contacts Are Required

Make-Up:

Palladium Electroless concentrate        quart

Distilled water                                  3 quarts

                                                      1 gallon

Operating Conditions:

Tanks                    Glass, plastic, lined steel

Temperature           Room temperature to 120 ^oF

Time                      30-60 minutes (see below). No agitation.

Thickness               see chart below

Operating Cycle:

• Degrease

• Soak Clean

• Rinse

• Sulfuric Acid Dip

• Rinse

• Immerse in Palladium Electroless

• Rinse

• Dry

Thickness Applied from New Bath in 30 Minutes (Old Bath with 90% of Palladium Depleted Requires 60 Minutes):

Silver, Copper, Nickel-Silver       5-6 millionths

Silver Alloys                                7 millionths

Copper Alloys                            11 millionths

Iron, Iron Alloys, Invar, Kovar    14 millionths

The bath should generally be discarded when exhausted.