DUSTEX SPRAY-ON APPLICATION
DUSTEX is an
environmentally friendly natural polymer derived from
the lignin in wood. When mixed with water, it can be
sprayed onto gravel roads to control dust. DUSTEX
works best in soil blends of sand (70%) to clay (30%)
for optimum dust suppression.
Continued use of “Dustex”
improves crop quality & yields, reduces loss of fines,
corrugations & potholes and grading frequencies.
Please keep DUSTEX dry by storing under roof
Road structure should be
a reasonably good quality base with wearing coarse
Ensure that the road
surface is firm, free of excess loose material and has
sufficient camber to ensure proper drainage.
Ripping the surface down
to ± 50 to 100 mm will greatly assist DUSTEX
Lightly water the road
(0.5 ℓ/m2) to assist DUSTEX
First fill water tanker
with one third water then slowly pour the dry
DUSTEX powder into the tanker.
At the same time,
continue filling the water tanker with water.
Ensure that paper or
plastic from the packaging does not get into the water
tanker as these will block pipes and sprays.
Suggested maximum dosage
is a 15% solution, 6 x 25 kg bags DUSTEX per
1000ℓ water = 150 g/m2 per 1000 m2.
(Repeat as per point 10 below).
DUSTEX will dilute
quicker if a recirculation pump is turned on during
the mixing process.
For gravel roads and open
areas, DUSTEX should be continuously applied as
a 15,0 % solution as part of the normal watering
programme until the required DUSTEX level of ±
1,0 to 2,0 kg/m2 is achieved for optimum
Avoid run-off and
pooling. Any DUSTEX run-off can be bladed back,
wetted and reused.
The application rate to
achieve the desired level of dust control will vary
depending on rainfall, climate, traffic and soil
with DUSTEX product between spray cycles will
decrease as the DUSTEX concentration builds up
and takes effect.
Periodic light watering
with plain water (0.5 ℓ/m2) between product
applications will assist binding of DUSTEX and
road material. Intervals between watering will vary as
with point 12 above.
For best results, apply
DUSTEX after rain when the soil is moist.
GUIDELINES FOR LONG-TERM DUST CONTROL USING DUSTEX
YEAR 1: Initial
application of 1,0 kg/m2 DUSTEX with
monthly rejuvenation of ± 0,150 g/m2.
YEAR 2: Rejuvenation
of 0,75 kg/m2 DUSTEX with twice
monthly rejuvenation of ± 0,150 kg/m2
YEAR 3: Rejuvenation of 0,5
DUSTEX with rejuvenation of ± 0,150 kg/m2
every third month.
These guidelines are
seasonal and may vary as described in point 12 above.
LIMITATION OF LIABILITY
Patch Industrial Supplies & Consulting (Pty) Ltd shall
not be held liable for any loss or damage arising from
any cause whatsoever without limitation in connection
with the supply, use, storage, application, accident or
otherwise of DUSTEX.
For assistance, please
call Mike on 083 232 5732
Click here for more information about Using DUSTEX