Permabond 738 Black Magic Toughened Cyanoacrylate Adhesive, Clear, 16 oz. Bottle

Typical Applications

Speaker Assembly

Bonding to Black Substrates

Black PVC Wire Bonding

Physical Properties of Uncured Adhesive

Solids, %: 100

Color⁽¹⁾: Black

Viscosity, cP at 25°C: 5000

Flash Point, °C (°F): 83 (181)

Specific Gravity: 1.1

Gap Filling, inches (mm): 0.020 (0.51)

Shelf Life stored at 2°C-7°C (35°F-45°F), months: 6

(1) To obtain maximum opacity, the product should be refrigerated when not in use. The total time at meat room temperature is about 10 days before the settling of the black additive occurs reducing black intensity. Shaking will not restore the original black intensity. Vigorously shaking will restore acceptable blackness for 1-2 days. This can be done a maximum of two times.

Typical Curing Properties

Maximum gap fill: 0.43 mm (0.017″)

Cure speed*

6 seconds (Steel)

6 seconds (Buna N Rubber)

6 seconds (Phenolic)

Full strength: 24 hours

*Handling times can be affected by temperature, humidity, and specific surfaces being bonded. Larger gaps or acidic surfaces will also reduce cure speed but this can be overcome by the use of Permabond C Surface Activator (CSA-NF) or Permabond QFS 16.

Typical Performance of Cured Adhesive

Set Time, Seconds

Steel 25-30

Aluminum 30-35

Phenolic 5-10

Buna Rubber 10-15

Lap Shear Strength, psi

24 hours at room temperature)

Grit blasted/Steel: 3100

PVC/PVC (rigid): Substrate Failure

Acrylic/Acrylic: Substrate Failure

Polycarbonate/Polycarbonate: Substrate Failure

Peel Strength, pli

180° Peel (ASTM D903) Steel/Steel¹ Using sandblasted steel: 13.0

Impact Resistance, ft-lb/in² (ASTM D950)

Steel/Steel: 8.0

PVC Plasticizer Resistance

180° Peel Strength, pli (ASTM D903) aged 1 week at 70°C (158°F) Flexible PVC/Steel: Substrate Failure

T-Peel (ASTM D1876) aged 1 week at 70°C (158°F) Flexible PVC/PVC: Substrate Failure

Operating Temperature °C (°F): -60 (-80) to 82 (180)

Cure Rate at 25°C

Set time, seconds

Steel 10

Buna N Rubber 10

Phenolic 10

Full cure, hours 24

Physical Properties of the Cured Adhesive

Hardness (Shore A): 85

Dielectric Strength (volts/mil), approx.: 250

Operating Temperature, °C, (°F): -60 (80°) to 82 (180°)

Soluble In: Nitroethane, Methyl, Ethyl, Ketone, Acetone

Product Overview

More Information

SKU	I167202
Part No.	CA007380016Z0101
Brand	Permabond
Type	Cyanoacrylate
Volume	1 lb. (16 oz.)