Fortafix Chemical Setting Adhesive Cement - 2P Chromix |
|
A 2 part (filler/binder) water based chemical setting ceramic paste. 2 Part Chromix - Chemical Setting Adhesive is ideal for bonding, assembling, sealing, jointing or repairing glass, ceramics, metals, quartz, steatite etc. Fortafix 2 Part Chromix - Chemical Setting Adhesive possesses excellent adhesive, thermal, electrical and mechanical properties. Good bond strength to metals. Higher tensile and compressive strength. Provides an efficient gas tight seal, and heat resistant filler for flaws in castings/moldings. Maximum continuous working temperature is up to 1400° C. |
|
Typically Used For |
| |
|
Suitable For |
· Bonding - Yes
· Thin Films/Coating - Yes
· Thick Sections - Yes
· Potting/Encapsulation - Yes |
|
Property |
|
Value |
Major Constituent |
|
Silicate Glass Binder, Inorganic Oxides |
Ready Mixed or 2 part |
|
2 Part |
Dispensable |
|
Yes |
Relative Viscosity |
|
Mixes to a viscous paste |
Coverage Rate/Coating Thickness |
|
|
Softening Temperature (°C): |
|
1300°C |
Melting Temperature (°C): |
|
1400°C |
Wet Density (g.cm-3): |
|
|
Colour: |
|
Brown/Black |
Compressive Strength: |
|
|
Thermal Conductivity (W.m-1.K-1): |
|
|
Thermal Expansion (x10-6C-1): |
|
|
Dielectric Strength (KV.mm-1) @ RT: |
|
|
Volume Resistivity (Ωcm) @ RT: |
|
|
pH: |
|
13 |
Expansion on Setting %: |
|
|
Shrinkage (Linear %): 150-500°C |
|
|
Shrinkage (Volume %): 150-500°C |
|
|
Hardness Moh’s Scale |
|
|
Oxidation Resistance |
|
Excellent |
Alkali Resistance |
|
Good |
Acid Resistance |
|
Excellent - except hydrofluoric |
Cure Guide |
|
Water based product - requires heat curing. |
Shelf Life: |
|
12 Months |
Packaging: |
|
500g, 1kg or other to special order |
|
|
|
Additional Information |
Binder Solids - % by Weight: 38.54
Mix Binder and Filler in ratio 2 pbw Filler: 1 pbw Binder. |
|
Application |
· Mix Binder and Filler in ratio 2 pbw Filler: 1 pbw Binder. (See note below).
· IT IS ESSENTIAL THAT ALL SURFACES TO BE BONDED ARE FREE FROM OIL, DUST OR ANY FORM OF SURFACE COATING OR CONTAMINATION.
· Ensure that all surfaces to be bonded, sealed or insulated are degreased, clean and free from contamination.
· A light surface abrasion of the material to be bonded will increase the amount of surface available for adhesion and will give improved mechanical key.
· Apply the adhesive to all surfaces to be bonded
· Join and apply moderate pressure to ensure even anchorage and solid contact of the surfaces to be bonded, so that all surfaces are fully wetted.
· Secure the components and allow the adhesive to set and harden. |
|
Curing |
The cement should be allowed to harden at a minimum air temperature of 20°C until the initial set has taken place. If heat curing is practicable the hardening process may be accelerated using the following schedules;
· Heat from 20 to 80°C @ 4°C per minute (15 minutes). Hold for 10-20 minutes
· Heat from 80 to 140°C @ 2°C per minute (30 minutes). Hold for 120-180 minutes
· Heat from 140 to 200°C @ 0.2°C per minute (300 minutes).
· Above 200°C raise temperature @ 1°C per minute to required temperature, allow to cool progressively. |
|
|
|
