Sealant Adhesive |
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| Direct glazing and UV-resistant joint sealant adhesive for
buses, trucks and rail vehicles |
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| Description |
| Sikaflex®-265 is a high-performance
elastic gap-filling 1-c polyurethane
adhesive that cures on
exposure to atmospheric humidity
to form a durable elastomer.
Sikaflex®-265 is manufactured in
accordance with ISO 9001 / 14001
quality assurance system and with
the responsible care program. |
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| Product Benefits |
• 1-C formulation
• Low odour
• Excellent working characteristics
• Fast cure time
• Resistant to ageing and
weathering
• Solvent- and PVC-free
• Equally suitable for manual
application and bulk dispensing
• Primerless application possible |
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| Areas of Application |
| Sikaflex®-265 is designed for direct
glazing applications in both the
OEM and repair markets, and is
suitable for use with mineral glassbased
windows. Before installing
laminated safety glass windshields
incorporating heating elements or
radio aerials in the PVB sandwich
layer, we recommend to contact
Sika’s Technical Service Department
for advice. Sikaflex®-265 can
be tooled to a very fine finish. It
contains special stabilizing ingredients
to enhance its UV
resistance, therefore it is suitable
for use in exposed joints. |
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| Cure Mechanism |
Sikaflex®-265 cures by reaction
with atmospheric humidity. At low
temperatures the water content of
the air is lower and the curing
reaction proceeds at a slower rate
(see diagram). |
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| Chemical Resistance |
Sikaflex®-265 is resistant to fresh
water, aqueous cleaning agents
(neutral, acid or alkaline types,
chlorine free in normal concentrations);
temporarily resistant to
fuels, mineral oils, vegetable and
animal fats and oils; not resistant
to organic acids, concentrated
mineral acids and caustic solutions
and solvents.
The above information is offered
for general guidance only. Advice
on specific applications will be
given on request. |
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| Method of Application |
Removal of old windows
Remove damaged glass in
accordance with the vehicle
manufacturer’s instructions.
Surface preparation
Surface must be clean, dry and
free from all traces of grease, oil
and dust.
The bond faces must be
treated as follows: |
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Toughened glass
with uniform and
continuous opaque,
mineral based
ceramic frit with light
transmission
* more,
than 0,1%**. |
Sika®
Aktivator +
Sika®
Primer-
206 G+P |
Toughened glass with
uniform and continuous
opaque, mineral
based ceramic frit
with light transmission
*
less, than 0,1%**. |
Sika®
Aktivator |
Metal with paint
primer or with partial
new painting
(< 25%) |
Sika®
Aktivator |
| Metal painted with
two part finish
lacquers |
Sika®
Aktivator
+ Sika®
Primer-
206 G+P |
| Old polyurethane
direct glazing
adhesive (cut face) |
Sika®
Aktivator |
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* Getag 200D, visible range
**For laminated glass this limit is 0,2%. |
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| Advice on specific applications is
available from the Technical Service
Department of Sika Industry. |
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| Application |
Cartridge: Pierce cartridge
membrane.
Unipac: Place unipac in the
application gun and snip off the
closure clip.
Cut off the tip of the nozzle to give
desired adhesive bead geometry.
For satisfactory results the adhesive
must be applied with a handoperated
cartridge gun, piston-type
compressed-air gun or pump
operated bulk dispensing equipment.
To ensure uniform thickness
of adhesive bead, we
recommend that the adhesive is
applied in the form of a triangular
bead
(see illustration). |
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Fill exposed joints with Sikaflex®-
265 completely without voids until
slightly overfilled, then remove
excess adhesive with a suitable
filling knife or spatula. If necessary,
the surface of the adhesive can be
tooled to a neat, smooth finish
using Sika® Tooling Agent N as a
lubricant.
Do not apply at temperatures
below 10°C or above 35°C. The
optimum temperature for substrate
and adhesive is between 15°C and
25°C.
For advice on selecting and setting
up a suitable pump system, as well as on the techniques of pump
operated application, please contact
the System Engineering Department
of Sika Industry. |
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| Further Information |
Copies of the following publications
are available on request:
• Material Safety Data Sheets
• Sika Primer Chart
• General guidelines for bonding
and sealing with Sikaflex®
products. |
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| Packaging Information |
Cartridge = 310 ml
Unipac = 400 + 600 ml
Hobbock = 23 l
Drum = 195 l |
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Important |
| For information and advice regarding
transportation, handling, storage
and disposal of chemical
products, users should refer to the
actual Material Safety Data Sheets
containing physical, ecological,
toxicological and other safetyrelated
data. |
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| Note |
| The information, and, in particular, the
recommendations relating to the
application and end-use of Sika
products, are given in good faith based
on Sika's current knowledge and
experience of the products when
properly stored, handled and applied
under normal conditions. In practice,
the differences in materials, substrates
and actual site conditions are such that
no warranty in respect of
merchantability or of fitness for a
particular purpose, nor any liability
arising out of any legal relationship
whatsoever, can be inferred either from
this information, or from any written
recommendations, or from any other
advice offered. The proprietary rights of
third parties must be observed. All
orders are accepted subject to our
current terms of sale and delivery.
Users should always refer to the most
recent issue of the Technical Data
Sheet for the product concerned,
copies of which will be supplied on
request. |
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