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The following are commonly
asked questions regarding skate deterrents. Our answers are based on our own
installation experience (more than 10,000 parts over the past five
years) and our shared experiences with many of our customers (who have
installed hundreds of thousands of parts).
NOTE: Although some answers refer
to specific brands of tools, the manufacturers are not sponsoring an
endorsement (we simply have found that they offer the best product for what
we do). If you have a product or technique that you would like to
share with others, we are happy to act as the conduit.
What is the black residue left behind?
- Believe it or not, skaters and bikers use wax and motor oil to minimize friction for
their respective stunts. When the wax gets warm, it gets sticky and
picks up ambient particles. In the summer months, the wax becomes liquified and it is absorbed by the concrete, leaving
permanent staining.
How can I clean the wax/oil?
- The most cost effective way of cleaning is to use heated, high pressure
water - this will generally cost between $150-$700 (depending in the
linear footage). If you are planning on high pressure cleaning, be
sure that the equipment heats the water (approx. 200 degrees).
Heated water helps break down the wax better than cold water alone.
- On factory installed jobs, we generally use a grinder with a
masonry wheel to cut through the wax and/or paint (we only clean the
area to which we are bonding). We have the site cleaned after we
have installed product.
- Some customers have reported using a torch to burn the
wax, but this is labor intensive, and if done incorrectly, torching the
concrete can lead to spalling (you will break the concrete).
- Other customers have had their concrete sand blasted. This is an
effective cleaning method, but it is labor intensive. Contrary to
belief, this will not remove all stains (the concrete is porous and will
pull the stain in, and sand blasting is only cleaning the surface).
- Do not use a wire brush or a grinder with a wire wheel for cleaning - this generally
yields poor results. Even if you operate the wire wheel at high
speed, you will only smear the wax around the surface.
Do I need to clean my walls before applying product?
- Parts are secured with anchors and adhesive (included in your kit).
In order to optimize bonding, the area will need to be cleaned.
Major clean up of the site may be performed after installation as long as
the area to which product will be attached is cleaned (in some cases, a
hand grinder, [with a masonry wheel], can be used to clean the surface for
bonding). See last question.
How do I repair broken edges?
- Unfortunately, worn or broken concrete cannot be fixed at the edge.
We have tried many repair products and we have found that most will crack
and break out with changes in whether. Furthermore, most do not look
like natural concrete. The best product we have seen for significant
repairs (fist size) is a product by Hilti (RM 700 EP) - this product
is a blend of epoxy and Portland cement. If your
edges are severely worn and broken, consider having a chamfer cut into the
corner (45 cut off the corner). A chamfer is an excellent shape for
maintaining integrity of edge, and in most cases, the chamfer cut will
remove all broken/worn evidence.
- For granite, stone, marble and other exotic substrates, the damage is
irreparable. Most of our customer who sustain damage on their
granite spend tens of thousands of dollars in replacement costs.
How long does it take to install product?
- Generally, parts can be installed at a rate of 6-10 pieces per
man hour, including set-up, minor hand grinding, and clean-up (6-8/hr for
Smart Pin and 8-10/hr for Spiral Drive or Carriage Assembly fasteners).
Remember, parts are installed with a combination of adhesive and
mechanical anchors, so you will be drilling holes in your substrate
(concrete, steel handrail, granite, fiberglass, aluminum, etc.).
How do I drill in concrete, granite, stone and other substrates?
- Concrete: Typically, drilling in concrete is best performed with a roto-hammer
drill. If you have a "hammer" drill that has a chuck similar to most
drills (takes drill bits with a smooth shank), you can drill in concrete
with it. However, for the best results, you should use a "roto-hammer"
drill (takes drill bits with an SDS shank). A true "roto-hammer" drill
has a special locking chuck that allows the drill bit to chisel during
the drilling function. Drilling time with a "roto- hammer" drill is
about 15 seconds and a quality drill bit will last hundreds of holes.
On the other hand, drilling time with a "hammer" drill will generally be longer (1-1/2 - 5
times longer). More importantly, with a "hammer drill" you will burn up the best of drill
bits in about 10-40 holes (some drills are better than others). If
you will be working on a large scale project and you do not have a "roto-hammer"
drill, make arrangements to rent one from your local yard (it will pay).
- Granite, tile, marble, stone or any other brittle substrate: Consider hiring a
qualified contractor for these types of substrates. If you use a roto-hammer
drill or other inappropriate drill, you will likely crack the substrate. We recommend a coring
drill. This drill is water cooled and uses diamond tipped drill
bits. Since the drill bit spins at 6000 RPM, it leaves a clean hole
with little or no risk at cracking or chipping the substrate.
- A NOTE ON DRILL BITS - Some of our kits may include masonry
drill bits (depending on the dealer). If you are purchasing a drill bit for masonry, be
sure that is has a carbide tip (a steel tip will last for 1-2 holes max.
and is a waste of your time and money).
Why are there Applicator Guns on my price list?
- We have our adhesive formulated specifically to give us
characteristics that we want (hold on a vertical surface, quick set time,
elasticity, etc). This two-part adhesive is included in your kit (it
is packaged in tubes of 50ml or 400ml). 20 pc kits are generally
packaged with 50ml adhesive, which requires an adaptor (CCK) for your
caulking gun in order to be dispensed (one "CCK" is included in your kit
at no charge). On orders of 60 pcs or more, the kit is packed with
400ml tubes of adhesive. This tube requires an adhesive applicator gun
(APP400).
- Although our 400ml tubes are industrial standard type tubes, you will
not find the applicator at your local hardware store - you would need to
go to an industrial adhesive distributor and you should expect to pay at
least as much as we offer the applicator for.
- Once you purchase an applicator gun, you need not purchase another (it
may be used over and over again). Some orders (250 pcs or more will
include the applicator gun), and in some cases, you may be able to make
arrangements for a "loaner" gun at no charge.
Why are there drill bits on my price list?
- The Spiral Drive fastener that we use for concrete requires a metric sized drill bit (Metric #6). The Smart Pin fastener
requires a 3/8" drill bit. Some kits may include a drill bit.
If your order does not include the drill bit or if you need extra drill
bits, you will need to purchase them. We offer them as a service to
you so that your installation is not held up while you attempt to locate
the appropriate drill bit (the metric #6 is very difficult to find).
Can I install in cold weather?
- Cold temperatures (30-50F) will slow down the set and cure times of
our adhesive, but you may still install. We advise customers that
are installing in colder whether to be sure that the adhesives are not
cold soaked (do not let the material set in the ambient such that it
becomes the same temperature as the environment). Practically
speaking, you need simply store the adhesive in a warm environment until
it is ready for use. If the material is cold soaked, it will be very
difficult to dispense from the tubes (warming the material to about 80
degree F makes it easy to dispense). Do not install product if
the substrate is wet (regardless of temperature).
If there is a question that we have failed to answer, please
contact us and we will be happy to answer it
for you.
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