FAQ for PC sheet

2017-02-08 09:07:00
Summary :General FAQ for PC sheet
q. what is the lead time for orders?
a. shipping time is 3-7 days from receipt of a purchase order.

q. what colors are available?
a. multiwall - clear, bronze, opal, white, blue, green and hammered available by special order. 

q. what is the longest length sheet in stock?
a. the longest sheet is 48'. every order is custom cut..

q. how are panels protected during shipping?
a. a custom wooden crate is built for each order.

q. how are panels shipped?
a. by common carrier and sea freight

q. how are multiwall panels cut?
a. use a razor knife or a circular saw with a fine tooth blade that has at least 10 teeth per inch. 

q. how are sheets fastened down?
a. use #10 woodmate screws or #12 self drilling-self tapping screws for metal.

q. do i need to use a washer with the screws?
a. yes, use a 3/4" neoprene bonded washer.

q. what type of sealant should be used on sheets?
a. 100% silicone for polycarbonate sheets. check sealant product label to ensure compatibility.

q. how can i get my h- or u-channel to slide onto the sheet?
a. rubbing a bar of hand soapor squirting mild liquid dish detergent on the edge of the sheet can aid in sliding a profile onto a multiwall sheet. a screw driver or a putty knife can be used to gently pry open the profile. after the profile has been installed, use a soft wet cloth to remove any excess soap.

q. can panels be nailed into place instead of screwing?
a. it is not recommended to nail sheets rather than screw.  there is a greater chance for impact damage.  screwing also allows for sheets to expand and contract with the weather which prevents warping.

q. is it necessary to predrill my holes?
a. predrilling is a vital step in the installation process.  without this, sheets will warp if unable to move during temperature changes.

q. are there any products that can help keep heat out?
a. all of sheets are uv protected however that does mean all sheets will block heat equally.  clear panels will allow the most heat and light to come through while opaque colors reflect heat.

q. how are sheets cleaned?
a. mild household detergents may be used with a soft rag.  never use aggressive or abrasive cleaning agents or glass window cleaners; they can chemically attack sheets.

q. when installing, can sheets be walked on?
a. during installation, do not walk on sheets. polycarbonate sheeting is not intended to support the weight of a person. use stepping ladders or place crawling boards between two or more rafters to create a path for walking.

q. where can polycarbonate sheets be purchased?
a. please call our customer service department at 0086-18664219240 and we can direct you to the nearest distributor.

q. what are polycarbonate sheet
a. polycarbonate sheets are a transparent, synthetic product.  because of its exceptional impact, weather and temperature resistance it provides solutions where other synthetics fail.  polycarbonate has a different chemical composition, and therefore different properties, from other transparent plastics such as pvc.

q. what can be polycarbonate sheet used for
a. polycarbonate sheets can be used in a wide range of applications including airports, stadiums, and public spaces.  polycarbonate sheets are also extremely suitable for private use, including in greenhouse roofing or glazing.

q. can i install the polycarbonate sheet by myself
a. polycarbonate sheets are particularly user-friendly and very light, so that fewer cross bars are needed. this makes the supporting structure more straightforward and cheaper.  have a look at our installation instructions for multiwall polycarbonate sheets here.

q. do the plastic sheets discolour over time
a. because of its transparent uv protective layer polycarbonate sheets do not discolour and most polycarbonate sheets come with a 10-year guarantee... but they can last even longer than that!

q. do these plastic sheets break easily
a. no!  polycarbonate sheets are not only extremely impact-resistant but thanks to their temperature and weather resistance they have a much longer service life.

q. is polycarbonate bad for the enviroment?
a. polycarbonate sheets are a very sustainable material that can be recycled and does not emit toxic substances during combustion.  moreover, there are sustainable polycarbonate sheets being manufactured using 20% renewable energy!

q. what happens in the event of a fire
a. fire safety is one of polycarbonate's strong points. polycarbonate sheeting is flame retardant and do not emit toxic substances, which is why they are so often incorporated in public buildings, where the most stringent safety regulations apply.

q. what is polycarbonate's enviromental impact
a. polycarbonate sheets can have a service life of over a decade. polycarbonate can be recycled or it can be disposed of via incineration or landfill, according to local regulations

q. how are polycarbonate sheets mounted
a. one of the differences between polycarbonate and glass, is that polycarbonate expands/contracts more under the influence of temperature (which is typical for all plastic sheets). the coefficient of thermal expansion (_) for polycarbonate is 0.065 mm/m °c. let's suppose you have to install a sheet in an area where the temperature difference between the hottest day in summer and coldest day in winter is 55°c. this means that the difference in dimensions of the sheet will vary by 55 x 0.065 = 3.575 mm per metre sheet length/width. this difference must be absorbed by the system used to mount the sheets. in most cases, polycarbonate sheets are clamped in aluminium glazing bars, which typically have a rabbet depth of 20 mm, and which allow for some movement of the sheet within the glazing system. other types of glazing systems can of course also be used, as long as they take this expansion into account. in case of doubt, you can refer to the technical documentation of one of the polycarbonate sheet suppliers.

q. what is the impact strength of polycarbonate
a. polycarbonate is almost unbreakable. it is many times more impact resistant than any other transparent material used for glazing or roofing purposes. many types of tests are used to measure impact strength, so it is difficult to compare data. solid polycarbonate sheets comply with most tests issued on the impact strength of glazing materials. to give an idea: a 3 mm-solid polycarbonate sheet withstands the force of a steel ball of about 4 kg dropped from a height of 9.5 m, 3 times in a row. it does not break or shatter! when you take a look at some of the more industrial applications, you will see that polycarbonate is used for machine glazing, police riot shields, ice-hockey rinks... all applications that require extreme impact resistance.

q. is polycarbonate bulletproof
a. single polycarbonate sheets are not bullet resistant, but there are special polycarbonate laminates on the market that are bullet proof. the main advantages over bulletproof glass are polycarbonate's light weight, and the fact that they do not shatter or splinter upon impact. because of these properties, they are often used in vehicle glazing. some producers of laminated glass also make laminates of glass with polycarbonate, which are bulletproof.

q. what about the weather resistance of polycarbonate
a. all polycarbonate sheets destined for building applications are uv-protected. this is achieved by a thin layer of uv-absorbing material that is inextricably bound to the sheet's surface. this layer absorbs and neutralises all harmful uv-rays present in sunlight. such polycarbonate sheets typically have a 10-year warranty against weathering.
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Foshan Zhennai Building MaterialsCo., Ltd
Add.: Shishan Industry Park, Nanhai, Foshan, Guangdong, China

Mobile: +86-17097666590 (whatsapp)
Phone: +86-75786400996
Email: info@zhennaicorp.com