On new projects, ensure paving is sealed with RESIBLOCK
ULTRA MATT simultaneously with pavement construction, on
a daily basis. DO NOT WAIT until project is complete.
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| CONTAINER SIZES |
RESIBLOCK ULTRA
MATT is available in 25 litre containers.
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| APPEARANCE |
RESIBLOCK ULTRA MATT in the container appears as a low
viscosity prepolymer urethane having a hydrocarbon odour.
Application will not significantly alter the appearance
of concrete pavers other than a slight darkening of the
surface having the effect of enhancing the inherent colours
of the pavers.
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| COVERAGE |
Coverage can vary between 1.9-2.4 m2 per litre, (on new
C.B.P. expect 2.2 m2 per litre) depending on type of paver
and depth of joint penetration required. In commercial
areas which may be subject to a harsh environment, the
lower limit of coverage should be considered. Accurate
application rates are essential to achieve full technical
benefits. Furthermore material usage can increase by up
to 25% on old/worn pavers or specialist blocks with wide
joints i.e. angular/rumbled. Please consult our technical
department for specific application rates. RESIBLOCK ULTRA
MATT, being a single pack product, can be used straight
from the container without thinning or addition of a reactive
agent; it must not be diluted.
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| SUBSTRATE/SURFACE CONDITIONS |
The surface should also be clean and free from oil, algae,
dust and lime bloom. Temperature must be above 3degrees C and
below 30degrees C. Application outside of these temperature ranges
may be possible, but contact our technical department first.
Surface should be dry. Jointing sand which contains moisture
can prevent bonding and stabilisation of joints. Do not
use if rainfall is forecast within 8 hours of project completion.
Trade Tip. If you wish to see if the paving is perfectly
dry, simply scrape out the jointing sand to a depth of
25mm; if it is dry, so are the blocks.
Ensure that the sand does not protrude from the base of
the chamfers, if the sand is not properly removed, it may
be picked up by the application tools.
If pavers/joints have been previously treated with any
other stabiliser or sealer, please refer to our Technical
Department prior to application.
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| PREPARATION - NEW WORK |
On new work all that is usually required is a good sweep
with a stiff broom, however if the surface has become partially
weathered or contaminated, wirebrush to remove all debris
(cleanliness of clay pavers is more critical than on concrete
blocks, if adequate bonding is to be ensured). For large
areas pressure cleaning may be more effective. For successful
use, optimum performance and maximum penetration of RESIBLOCK ULTRA
MATT, ensure joints are well filled to the bottom
of the chamfers with clean, compacted kiln-dried sand,
complying to BS 6717 or equiv. (See notes on substrate
conditions re. sand removal and moisture).
Ideally, at the time of installation, joints should only
be half filled with kiln dried sand. In the event that
the humidity has been increased with a water sprinkler,
the remaining kiln dried sand may be added once the block
paving has dried. Refer to Engineers note. This would allow
final filling and compaction on the same day that the surface
is to be sealed. The jointing sand thereby being completely
dry, allowing for optimum absorption conditions of the
RESIBLOCK ULTRA MATT.
Application to poorly prepared pavers particularly in
respect of dampness can result in inadequate joint penetration
or paver adhesion, and in exceptional circumstances discoloration
and disbonding.
Paving Slabs. Use RESIBLOCK PATIOSEAL.
Engineers note. Application specification should note
moisture content of the pavers not to exceed 6% and air
temperature should be checked to ensure it is within 3degrees C
of the dew point. In an exceptionally dry atmosphere, increase
the humidity, e.g. with a water sprinkler, the block paving
should the be allowed to dry, leaving sufficient residual
moisture to allow polymerisation to take place.
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| PREPARATION - OLD WORK |
This is probably the most essential part, inasmuch as
it will determine the technical standard of the finished
paved area. The pavers must be thoroughly cleaned using
a pressure cleaner to remove all algae and lichen. This
operation will also blast out all weeds and grass, and
most of the top layer of jointing sand from between the
blocks. It should also remove all food and drink stains
along with any surface dirt and grime.
Note. Occasionally the action of washing or pressure washing
will cause substrate saturation and/or reactivate efflorescence.
Therefore allow 2 weeks between cleaning and application
of RESIBLOCK '22' ULTRA to allow to dry out and to check
for lime-bloom reappearance.
Once the substrate has been allowed to thoroughly dry,
the joints between the pavers must be re-filled using kiln
dried sand. This can be done simply by placing fine dried
jointing sand onto the paving and sweeping in using a conventional
soft broom. Finally completely remove surplus sand as previously
described.
More detailed information on block/brick cleaning can
be found by contacting the Brick Development Assoc. in
Berkshire (01344 885651) and obtaining a copy of their
publication 'Building Note 2 - Cleaning of Brickwork'.
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| EQUIPMENT |
RESIBLOCK SQUEEGEE. RESI-ROLLER.
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| METHOD OF APPLICATION - SQUEEGEE |
Application to concrete or clay pavers can be sealed using
this method. An area approximately 1m by 10m should be
marked out and the contents of a 5 litre container (gauging
pot e.g. 5 litre watering can with rose attached) evenly
poured out over the designated area. This should be immediately
spread out and wiped from the surface and into the paver
joints using a RESIBLOCK SQUEEGEE. Sufficient material
should be worked into the joints so it will initially fill
the chamfers (ultimately to be completely absorbed). Surplus
RESIBLOCK ULTRA MATT must not remain on the paver surface but squeegeed into the joints as described; this is CRITICAL
ON CLAY PAVERS.
Note. Solvents are released during the cure that normally
permeate through the sealer, however if the RESIBLOCK ULTRA
MATT is applied too thickly, the substrate is damp or excessively
cold, bubbling may occur, giving the appearance of a white/milky
residue.
Trade Tip. If you need to walk on an area that is still
wet, use an old pair of golf shoes.
TWO-COAT APPLICATION
A second coat is not normally recommended unless it is
required to render the surface impervious. Please telephone
+44 (0)1268 273344 for more information.
NOTE. CLAY PAVERS MUST ONLY HAVE 1-COAT.
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| CURING PERIOD |
Rapid initial cure will take place depending on ambient
temperature, humidity and block porosity; 1-3 hours can
be expected. Immediately the surface is dry the paved area
can be subjected to foot or light traffic but full chemical
cure must be allowed to take place (24 hours) before being
subjected to full traffic use.
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| STORAGE |
Containers should be stored under cover and be protected
from extremes of temperature. Being aliphatic based it
is temperature sensitive, if stored at temperatures below
10degrees C, the polymer may tend to settle out of the solvent,
as such ensure contents of container are thoroughly mixed.
Partly used kegs should not be stored. Any remaining traces
of RESIBLOCK ULTRA MATT in used drums must be cured by
leaving the containers open; and in dry conditions, putting
water into each container.
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| SHELF LIFE |
RESIBLOCK ULTRA
MATT, (unopened containers), has a shelf
life of 12 months. All containers are marked with the use-by
date
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| CLEANING TOOLS AND EQUIPMENT |
RESIBLOCK ULTRA
MATT cures rapidly when exposed to atmospheric
moisture, to give a film that can only be removed with
great difficulty. For this reason it is recommended that
all equipment be cleaned immediately using RESICLEAN. Do
not use other solvents as unknown synergistic reactions
may take place. Wash with water and detergent afterwards.
RESICLEAN is also effective in the removal of splashes
and spillages of uncured RESIBLOCK ULTRA MATT.
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| HEALTH AND SAFETY GUIDELINES |
PVC gloves and protective clothing/face shield must be
worn, plus use of a barrier cream on exposed areas of skin,
as uncured RESIBLOCK ULTRA MATT may be considered a hazardous
material.
No smoking or naked flames, as RESIBLOCK ULTRA MATT is
FLAMMABLE. Ensure area to be treated is well ventilated.
If public access is allowed, erect NO SMOKING signs and
site fire extinguishers
A mask of the recommended type is essential when using
a paintbrush, working close to the surface or internally.
Sabre or Martindale is recommended.
Do not apply RESIBLOCK
ULTRA MATT in the presence of foodstuffs. Once fully
cured RESIBLOCK ULTRA MATT can be considered
innocuous. Do not clean hands with RESICLEAN as solvents
tend to de-fat skin that can lead to dermatological problems. Do not return unused material to original containers.
DO NOT RESEAL or store partly used kegs. Material so stored
may have poor adhesion and Carbon Dioxide may generate
and put the drum under pressure, which might rupture the
drum. Furthermore partial or total solidification of the
sealant may occur.
Please refer to Resiblock Limited's current Material Data
Sheets for the latest and comprehensive information on
this section.
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| LIMITATIONS |
RESIBLOCK ULTRA
MATT is not
suitable for pattern imprinted
concrete, engineering bricks, quarry tiles, marble, granite,
exposed aggregate panels etc. Contact our technical department
for more information.
....and finally, we really do care! We at Resiblock Ltd
are totally committed to ensuring you have the best possible
job. So if you are in any doubt, please telephone 01268
273344 before starting your project, for friendly professional
advice.
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| RESIBLOCK ULTRA MATT - APPLICATION GUIDE
SUMMARY* |
On new projects, ensure paving is sealed with RESIBLOCK
ULTRA MATT simultaneously with pavement construction,
on a daily basis. DO NOT WAIT until project is complete.
1. Make sure the surface and jointing sand are THOROUGHLY
DRY and free from dirt.
2. Ensure that RESIBLOCK ULTRA MATT is only applied when
there is no risk of rain within the next 8 hours.
3. Do not apply in extremes of temperature (below 3degrees C
or above 30degrees C).
4. Ensure paving is thoroughly swept and that no jointing
sand remains in the chamfers of the pavers.
5. Apply to surface using a watering can (with the rose)
and remove all surplus with the SQUEEGEE.
6. Accurate application
rates are critical to ensure full joint stabilisation
(typically 1 litre/2m2).
7. Wet-cast
paving slabs must be pre-treated with RESIBLOCK E.R. and
allowed to thoroughly dry (2 weeks recommended). 8. A MINIMUM of 3 hours and a MAXIMUM of 24 hours between
the first and second coats. Two coats are recommended to
prevent fuel/water infiltration (but may reduce S.R.V.). ONE
COAT ONLY on clay pavers.
9. Avoid walking on the sealed area for 3 hours after
application and do not drive motor vehicles on the surface
for 24 hours.
10. ALWAYS WEAR PROTECTIVE GLOVES AND GOGGLES. NO SMOKING.
WEAR A MASK WHEN WORKING IN CONFINED AREAS. Please refer
to current MSDS.
11. All uncured sealant and tools should be cleaned immediately
using RESICLEAN.
12. Being aliphatic based it is temperature
sensitive, if stored at temperatures below 10 degrees
C, the polymer
may tend to settle out of the solvent, as such ensure
contents of
container are thoroughly mixed. FOR FREE ADVICE TELEPHONE
RESIBLOCK
01268 273344
* This fact sheet is not intended to replace the full
application instructions, which must be read prior to application.
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