Introduction
Darbond 2648 is a one-component, high strength, high Temperature resistant, fast curing anaerobic compound for Retaining cylindrical hole/shaft fitting piece. It cures when Confined in the absence of air between two close fitting metal Surfaces.
Typical Applications
Used for dynamic loading or periodic loading working Conditions. High temperature resistant, fast cures, retaining Cylindrical hole/shaft fittings with fit clearance less than 0.15mm.

Typical Properties of Uncured Material
Typical Value Range
Appearance Green liquid
Basis material Methacrylate
Viscosity (mPa. S)
(GB/T2794-1995)
(Brookfield RVF)
2# Spindle 20rpm 500 400-600
Specific Gravity (g/cm
3
) 1.25
(GB/T13354-1992)
Flash point () > 93
(SH/T0733-2004)
Max. Gap Fill (mm) 0.15
Fixture (min) 5-20
Typical Performance of Cured Material
Full cure time at room temperature (h)
24
Shear Strength (MPa) > 18
(GB/T18747.2-2002)
Working Temperature () -50-175
Chemical/Solvent Resistance
Aging at the following conditions and tested at 22.
% of Initial Strength
Solvent
Temperature
() 100h 500h 1000h
Motor oil 125 100 100 100
Unleaded
Gasoline
22 100 100 100
Brake fluid 22 100 100 100
Ethanol 22 100 100 100
Acetone 22 100 100 100
Water/Glycol
(50%/50%)
87 100 90 75

Directions for Use
For best performance, surfaces should be clean, dryand free
Of grease. Darbond cleaner 2755 is recommended.
For sliding fitting piece, apply the product for one ring
Around the bevel edge of shaft and shaft liner, rotate right and
Left when assembly to guarantee well coating;
For press fitting piece, apply the product to the two bonded
Surfaces, and assemble on the press under suitable high
Pressure.
For heat shrinkage fitting piece, apply the productto the shaft,
And heat the shaft liner to produce enough gap for well easy
Assembly.
Assembled parts should not be disturbed until sufficient
Strength is achieved.

Cautions
To prevent contamination of the product, do not return any
Material to the original container.
The product is not recommended for use in pure oxygen
And/or oxygen rich systems.
It's not recommended on plastics.
Keep out of reach of children.
The product contains acrylic acid and methacrylate ester,
Which may irritates skin and eyes. So it is recommended to
Use the product at a well ventilated place.
In case of contact with eyes or skin, rinse with clean water
Immediately; If symptom goes on, call a physical attention.
More detail, please refer to MSDS of this product.

Package
Item No.: 264802, 50ml bottle
Item No.: 264805, 250ml bottle
Storage
Stored in a cool and dry location in unopened containers at
8-28.
Shelf life is 24 months.