DURASTRIP TLS-140

Description:

DURASTRIP TLS-140 is a two-part stripper designed to strip tin/lead in two separate steps. Part A removes the lead, leaving tin intermetallilc at eh copper / tin interface, and Part B removes the tin leaving a bright, clean copper surface that is resistant to oxidation and ideal for optical inspection.

Benefits:

• Broad operating latitude.
• Fast and predictable
• High load factors
• Minimal sludging

Properties:

Part A
Form:                                   Clear, water-white liquid
pH, concentrate:                 >1
Specific gravity:                 1.183
Weight/Gallon                    9.87
Solubility, water:                Infinite
Odor:                                    None

Part B
Form:                                    Yellow/brown liquid
pH:                                        1
Specific Gravity:                 1.071
Weight/gallon:                    8.93
Odor:                                    Slight, characteristic
Solubility, water:                Infinite

Applications:

DURASTRIP TLS-140 was formulated for batch stripping of tin/lead pattern plate where Part A removes the lead and Part B the remaining tin at the copper interface.

Directions For Use:

Part A
Make-up:                                      As received
Temperature:                                  70°F to 80° F
*Time:                                           3 - 5 minutes or as required
Agitation:                                     None required
Operation:                                    Immersion only. Do not spray

Part B
Make-up:                                      50% by volume
Temperature:                                  70°F to 80° F
*Time:                                           3 - 5 minutes or as required
Agitation:                                     Recommended
Operation:                                    Immersion only. Do not spray

Rinsing: Rinsing is required between steps A and B and after Part B.

*Stripping rate is dependent on thickness of the tin/lead deposit and its' age, and the saturation level of the baths. Fresh baths are always faster than those that are nearly spent.

Equipment:

TANKS: polypropylene, PVC, PVDC, fiberglass

HEATERS: Teflon Coated, quartz (if needed)

EXHAUST VENTILATION: Recommended

RACKS: 316 Stainless Steel plactisol coated preferred

Maintenance:

Keep tanks covered when not in use. Replace dragout with fresh solution; replace evaporation with D.I. water.

Control:

No analysis is required. Control is by visual observation of stripping rate. When stripping times for either Part A or Part B slow to unacceptable levels it is time to replace the baths.

Safety:

DURASTRIP TLS-140 A contains nitric acid and is therefore extremely corrosive. Always wear appropriate eye, face, hand and body protection when dispensing or otherwise handling this product. Eye contact can cause severe damage and possible blindness. In case of contact immediately flush with copious quantities of cool water for 10 to 15 minutes and get medical attention right away.

DURASTRIP TLS-140 B contains hydrochloric acid and should therefore be handled with care and in accordance with good safety practices. Face shield, apron, gloves and any other appropriate safety equipment should be worn when dispensing or otherwise handling this material. In case of skin contact flush with copious quantities of fresh, cool water. In case of eye contact flush immediately for at least 15 minutes and consult a physician. Always consult the appropriate MSDS before handling either DURASTRIP TLS-140 Part A or Part B.

Storage:

Keep containers sealed. Keep partial containers closed at all times. Store product away from sources of direct heat. Keep away from alkaline materials and reducing agents.

Shelf Life:

DURASTRIP TLS-140 Part A and B are guaranteed for six (6) months from date of receipt in unopened containers.

Containers:

Five gallon pails and 55 gallon nonreturnable plastic drums.

Classification:

National Motor Freight Classification: Part A #48580 Sub 3, Part B #48580 Sub 3
DOT Hazardous Material Description: Part A Corrosive Liquid n.o.s. (contains Nitric Acid), Part B Compound , cleaning liquid (contains Hydrochloric Acid)
Hazardous Class: Class 8
I.D Number: UN 1760, packing group III

The information contained herein is based on our experience and is believed to be reliable. However, since methods and conditions of use of our products as described are beyond our control, both the product and instructions for its use are offered without warranty, expressed or implied. No information on this data should be construed as a recommendation by DURATECH INDUSTRIES, INC., to use any product in contravention of any patent right.