3M: Scotchlok 3570


Scotchlok™ 3570 Connector Sealing Packs	Download printable PDF version

Product Description

Scotchlok™ 3570 Connector Sealing Packs insulate and provide protection for electrical spring connectors against dust, soil, water, and other environmental elements. Each sealing pack contains a specific amount of Scotchcast™ 400 epoxy resin and will accommodate one Scotchlok™ Y, R, G, B, 3M Brand 212, 312 or 512 electrical spring connector. Scotchcast™ 400 electrical insulating resin is a two-part epoxy insulating and encapsulating resin. This resin, mixed in its unique container bag, generates its own heat to cure. Its compatibility with spring connectors makes 400 resin an excellent insulator and sealer for electrical spring connections

Resin Features

Thermosetting, therefore will never melt or run once it cures
Generates its own heat to cure
Oil resistant
Bonds to itself
Tough
Stable at elevated temperatures (up to 121°C)
Unipak™ container bag for mixing the resin and encapsulating the appropriate spring connectors
Excellent multi-purpose moisture sealing resin

Applications
To insulate electrical spring connectors For potting and protecting a wide variety of electrical spring connections For sealing against dust, soil, water, and other environmental elements
Data: Physical and Electrical Properties Physical Properties - Resin
Color	Black
Hardness	75 Shore D
ASTM D-2240
Tensile Strength	3500 psi
ASTM D-412
Elongation	20%
ASTM D-412
Glass Transition Temperature	68°F
(by DTA) 3M test method	(20°C)
Heat Aging - Weight Loss
1 week @ 250°F (121°C)	1.9%
2 weeks @ 250°F (121°C)	2.9%
Hydrolytic Stability - Weight Gain
1 week boiling water	4.6%

Electrical Properties - Resin
Dielectric Strength	500 v/mil
ASTM D-149
Dielectric Constant (60 Hz)
ASTM D-150
73°F (23°C)	3.9
140°F (60°C)	4.8
194°F (90°C)	5.9
221°F (105°C)	6.6
Dissipation Factor (60 Hz)
ASTM D-150
73°F (23°C)	2.5%
140°F (60°C)	5.7%
194°F (90°C)	9.2%
221°F (105°C)	>20%
Note: *This data is not to be used for specifications. Values listed are for typical properties and should not be considered minimum or maximum.*

Specifications Product The material must be supplied in a two-part polyethylene bag with a barrier separating a prepolymer and a polyol. The barrier must be capable of being broken to permit mixing the two parts without opening the bag.

Engineering/Architectural The material must be Scotchcast™ 400 epoxy resin. It must be packaged in the 3M Unipak™ two-part polyethylene bag. The resin must be mixed within the Unipak™ container simply by separating the barrier between the two parts of the bag and between the two parts of the bag and the bag. Installation Turn power off before installing connector, then make connection per manufacturer's instructions. All electrical work should be done according to appropriate electrical codes. Note: When temperature is below 50°F (10°C), keep resin in warm place prior to mixing (for example, in an inside pocket next to the body).
1.	Thoroughly clean and dry the surface of the substrate to which the material is desired to bond.
2.	Remove guard bag, using caution not to damage
3.	Grip both edges of bag at the center barrier (FIG. 1), and wrinkle and flex the bag across the barrier. This will weaken the barrier.
FIG. 1

4.	Squeeze the CLEAR SIDE of the resin, forcing the resin through the center barrier.
5.	Mix thoroughly to a uniform color by squeezing contents back and forth 25-30 times.
6.	Squeeze resin to one end of bag, and cut off other end (FIG. 2).

3570-b.gif (3230 bytes)
FIG. 2

7.	Slowly insert connection into sealing pack until it fits snugly against the opposite end (FIG. 3).

3570-c.gif (3681 bytes)
FIG. 3

8.	Wrap open end of bag with Scotch Brand Super 33+ Vinyl Electrical Tape and position the taped end up until resin jells (FIG. 4).

3570-d.gif (3753 bytes)
FIG. 4

Refer to Material Safety Data Sheet for health, safety and precautionary information. (512) 984-5670

Maintenance
Scotchlok™ 3570 Connector Sealing Packs are stable for a period of two years from date of manufacture providing the Guard Bag (the white aluminized bag) is not opened when stored under the following recommended storage conditions. Store behind present stock in a clean dry place at a temperature of 70°F (21°C) and 40 to 50% relative humidity. Good stock rotation is also recommended. If the guard bag is removed the shelf life could be reduced to as little as two weeks under conditions of high humidity. A Scotchlok™ 3570 Connector Sealing Pack is not impaired by freezing; however it should be warmed to at least 32°F (0°C) before being mixed or poured.

Availability
3M Scotchlok™ 3570 Connector Sealing Packs are available from your local 3M authorized distributor in the following size:

Size G (6.7 grams) 10/box

IMPORTANT NOTICE TO PURCHASER:
All statements, technical information and recommendations related to the Seller's products are based on information believed to be reliable, but the accuracy or completeness thereof is not guaranteed. Before utilizing the product, the user should determine the suitability of the product for its intended use. The user assumes all risks and liability whatsoever in connection with such use.

All statements or recommendations of the Seller which are not contained in the Seller's current publications shall have no force or effect unless contained in an agreement signed by an authorized officer of the Seller. The statements contained herein are made in lieu of all warranties expressed or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose which warranties are hereby expressly disclaimed.

SELLER SHALL NOT BE LIABLE TO THE USER OR ANY OTHER PERSON UNDER ANY LEGAL THEORY, INCLUDING BUT NOT LIMITED TO NEGLIGENCE OR STRICT LIABILITY, FOR ANY INJURY OR FOR ANY DIRECTOR CONSEQUENTIAL DAMAGES SUSTAINED OR INCURRED BY REASON OF THE USE OF ANY OF THE SELLER'S PRODUCTS.

3M Electrical Products Division
6801 River Place Blvd.
Austin, Texas 78726 - 9000