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乐泰499瞬间胶
包装规格：20g瓶装
主要粘贴材料：金属，塑料，橡胶
颜色：无色
类型：乙基
粘度：18000/40000
固化速度：75秒/24小时
剪切强度：18/26
相对密度：1.1
LOCTITE® Product 499 is an ethyl cyanoacrylate adhesive of
gel consistency for non-drip and non-run applications.
TYPICAL APPLICATIONS
The gel form of this product enables it to be used on vertical
surfaces without any product migration.
PROPERTIES OF UNCURED MATERIAL
Typical
Value Range
Chemical Type Ethyl Cyanoacrylate
Appearance Clear, translucent, colourless
Specific Gravity @ 25°C 1.1
Viscosity @ 25°C, mPa.s Gel
Flash Point (COC), °C >80
Vapour pressure mbar: Shelf life at 20°C, months 6
FIXTURING TIME
This is defined as the number of seconds after assembly when
a joint develops a tensile shear strength of 0.1 N/mm2
measured at 22°C, 50% relative humidity ording to ASTM
D1002 and DIN 53283. This cure speed is affected by the
nature of the substrate, ambient humidity and temperature.
High cure speed is favoured by thin bond lines and by avoiding
excess adhesive.
Performance of Loctite Product 499 on metallic and nonmetallic
substrates:
Substrate Fixture Time, seconds
Mild steel (degreased) 50 to 100
Aluminium (degreased) 15 to 40
Zinc bichromate 50 to 150
Neoprene rubber Nitrile rubber ABS 30 to 60
PVC 50 to 100
Polycarbonate 50 to 100
Phenolic materials 20 to 50
All surfaces were cleaned by isopropyl alcohol wipe.
Times and strengths can vary considerably fordifferent grades of
plastics, rubber and plated metals
Where cure speed is inadequate, due to low relative humidity,
or large gaps, a LOCTITE ACTIVATOR may be used. This
can, however, lead to a reduction in eventual strength of the
bond and careful testing is mended before use in
production.
While full functional strength is developed in a relatively short
time, curing continues for at least 24 hours before full chemical
and solvent resistance is developed.
PHYSICAL PROPERTIES OF CURED MATERIAL
Full strength achieved after 12 hours at 22°C on most substrates.
Coefficient of thermal expansion, ASTM D696, K-1 100 x 10-6
Coefficient of thermal conductivity, ASTM C177, W.m-1K-1 0.1
Softening point, °C 165
mended gap, mm 0.1
Maximum gap, mm,: Without Activator 0.01
With Activator 1.0
Cleaning solvent: Acetone
Electrical Properties
Dielectric constant, ASTM D150 -
100 Hz: 2 to 3.3
1kHz: 2 to 3.5
10 kHz 2 to 3.5
Dissipation factor, ASTM D150 -
100 Hz < 0.02
1kHz < 0.02
10 kHz Volume resistivity, ASTM D257 -
WCM X 1016 0.2 to 1
Surface resistivity - W x 1016 1 to 8
Dielectric strength, ASTM D149 - kV/mm: 25
PERFORMANCE OF CURED MATERIAL
Tensile shear strength, ASTM D1002, DIN 53283, N/mm2 -
Steel * 18 to 26
Aluminium * 11 to 19
Zinc bichromate 8 to 15
ABS 6 to 20
PVC 6 to 20
Polycarbonate 5 to 20
Phenolic 5 to 15
Neoprene Rubber 5 to 15
Nitrile Rubber 5 to 15
Tensile strength, ASTM D2095, DIN 53288, N/mm2:
Steel 12 to 25
Buna N Rubber 5 to 15
Peel strength, ASTM D1876, DIN 53282, N/mm2
Degreased steel * Sand-blasted surface
CHEMICAL / SOLVENT RESISTANCE
Strength test procedure: ASTM D1002/DIN 53283
Substrate: Grit blasted mild steel.
Cure procedure: 1 week at 22°C
Solvent Temperature % Initial strength
retained at
100 hr 500 hr 1000 hr
95% R.H.: 40°C 100 100 95
Motor oil 40°C 100 100 95
Leaded petrol 22°C 100 100 100
Isopropanol 22°C 100 100 100
Ethanol 22°C 100 100 100
Freon TA 22°C 100 100 100
1.1.1. trichloroethane 22°C 100 100 100
GENERAL INFORMATION
This product is not mended for use in pure oxygen
and/or oxygen rich systems and should not be selected as
a sealant for chlorine or other strong oxidising materials.
Directions for use
For best performance surfaces should be clean and free of
grease. This product performs best in thin bond gaps,
(0.05mm). Excess adhesive can be dissolved with Loctite
clean up solvents, nitromethane or acetone.
Storage
Product shall be ideally stored in a cool, dry location in
unopened containers at a temperature between 8°C to 21°C
(46°F to 70°F) unless otherwise labelled. Optimal storage
conditions for unopened containers of cyanoacrylate products
are achieved with refrigeration: 2°C to 8°C (36°F to 46°F).
Refrigerated packages shall be allowed to return to room
temperature prior to opening and use. To prevent
contamination of unused product, do not return any material to
its original container.
优势方面
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