PCB Drilling board Facility

Melamine board suppiler-YUESHAN,modern and world-class infrastructure unit is located in FOSHAN, GUANGDONG and boasts of having the latest machinery and technology in order to help us manufacture an impeccable of thickness and size melamine HDF sheets for PCB drilling process.

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Lubrication backup board


Back up material by hot press short cycle melamine lamination machine for pcb drill factory


Our products are manufactured in compliance with industrial quality standards raw materials using high density wood fibreboard thickness 2.0/2.5/2.7MM

  • Lubrication backup board

    Lubrication backup board

  • white melamine hdf sheets

    white melamine

  • titanium white

    titanium white

  • Lubrication melamine paper

    Lubrication melamine paper

  • MDF


  • 2.5mm HDF

    2.5mm HDF


Our white melamine board for PCB driller undergo stringent checks on their quality prior to dispatch to ensure optimum client satisfaction

why us

We are among the leading firms engaged in offering a quality PCB backup board /melamine backup board at budget-friendly market prices. These are manufactured using premium quality raw materials as per the existing industrial standards of quality. Factors that have given us an edge over other competitor firms are:

  • ● High quality material
  • ● Stringent quality inspection
  • ● Timely delivery
  • ● Quick and easy export
  • ● Competitive prices
  • ● Easy transaction manner

980 density warp free white melamine backup board for PCB dr

2.7mm wooden melamine coated fiberboard backup sheet for PCB

  • Composition

     980 density warp free white melamine backup board. for PCB drill is laminate the white melamine sheet to high density wood fibre board.  (which produced with  urea formaldehyde resin and wood fiber board. two density available :830kg/m3 and 870kg/m3 for different need of clients 

  • Description

    2.5mm melamine backup board description
    1. Use: Used in PCB/FPC drilling hole; 
    2. Thickness: 2.5, 2.6, 2.7mm ±0.15mm; 
    3. Specification: 37”*49” (940mm*1245mm), 41”*49” (1041mm*1245mm), 43”*49” 
    (1092*1245mm); cut size per request 4. Warpage: ≤0.6%; 
    5. Density: 980+-30%kg/m3; 
    6. Surface Hardness: 80+-5N/mm2 (Shores D)

  • Product Advantage

    2.5mm melamine backup board is a kind of new type of drilling cushion for small hole. Then it turn to be compound board with solidity surface and stretchy midst core. It can  used for the hole on precise multilayer circuit board. It?s designed to replace the phenolic backup board in particular. especially for the pinhole aperture, multilayer board and flexible Board.
    1. It's the surface hardness is the same as the phenolic backup board . but stabilize dimension and not easy to distort.
    2. It's easy to treat with after using and accord with environmental protection standard.

  • Composition

    PCB sheet material composition  

          Yueshan have created a melamine. wooden sheet for PCB drilling that responds to the increasing. demand of today’s rigid drill room needs. that want a robust drill back up board. wooden melamine coated board uses the best quality. raw materials fibreboard sheets to make sure performance and consistency.

    wooden sheet pcb backup board

         A printed circuit board (PCB) is the board base for physically supporting and wiring the  surface-mounted and socketed components in most electronics. 

         In applications where fine conductive traces are needed, such as computers, PCBs are made by a photolithographic process, in a larger scale version of the way conductive paths in processors are made. 
          Electronic components are typically placed by machine onto a finished PCB that has solder dabs in place. The PCB bakes in an industrial oven to melt the solder, which joins the connections. Most PCBs are made from fiberglass or glass-reinforced plastics with copper traces.
          PCBs can be single-layer for simple electronic devices. Printed circuit boards for complex hardware, such as computer graphics cards and motherboards, may have up to twelve layers. PCBs are most often green but they can come in any color.
    Other methods of PCB manufacturing include silk-screening and CNC-milling.

          wooden melamine coated fiberboard backup sheet  specification

      Use: PCB/FPC drilling hole

      Thickness: 2.5, 2.7mm±0.15mm

      Density: 980±30Kg/m3

      Surface Hardness: (80±5N/mm2 (Shores D) )


      fibreboard sheets size:

      37〞×49〞 41〞×49〞 43〞×49 〞

      939x1244 mm, 1090x1244 mm

      custom cut panel and sheet sizes obtainable. And can provide position hole drill service

      Quality control:The high-quality of wooden back up board. assured by the tightest manufacture tolerances. together with permanent product control corresponding to ISO 9001.

    storage: wooden melamine coated fiberboard backup sheet.  should stay sealed in its initial packing until use. It must stored beneath the same heat and humidity circumstances. that surround the operating area. Rapid change of the conditions may cause moisture fall out leading to next warp.

    Best storage at: 65° - 75°F (18° - 24°C)

           HOLE QUALITY: prepared timber. produce a high density fiber board (HDF) with a minimal natural resin level. that will not contaminate the hole,ideal repalace for phenolic board.



  • Description

    drilling melamine process

          Drilling for adjustable shelves can be a problem in melamine. A sharp brad-point bit will make a clean hole, but the melamine is hard on the cutting edges and a typical bit will dull. Production shops use special carbide-tipped bits that are expensive and hard to find.
          For the weekend builder, the best way to drill holes in melamine is to use a router. A simple jig and a plunge router with a 5/8-in. guide bushing is the way to go. Use a 1/4-in. carbide down-spiral bit for flawless holes.
          Routers are great for cutting dadoes in melamine, because it assures a chip-free cut. Unfortunately, melamine is about 1/128-in. over 3/4-in. As a result, if you try to use a 3/4-in. router bit to cut a dado, it’ll undersized—not a pretty picture come assembly time. You can get around this by making a 1/2-in. dado and creating a 1/2-in. tongue on the ends of the shelf with a rabbeting bit.
         Typical wood glue won’t bond at all to melamine’s slick surface. That leaves you with a weakened glue joint where melamine meets particleboard. , you can buy specialized glue. that will bond melamine to a porous surface like particleboard. This is especially critical on more delicate joints, for instance. those used to construct a drawer.
          The easiest way to cover exposed screw heads is with Fast Cap self-stick caps. These discs come in typical melamine colors and they’re a cinch to apply peel and stick.
          Melamine needs to edged for a finished look. You can use iron-on edging, but self-stick edging is faster, easier and strong. peel, stick and give it a pass with a wood block or roller to push the adhesive into the particleboard. Maximum strength obtained in a week. One swipe with a double-sided edge trimmer cuts the tape flush.
          A flush-fit screw cap looks a whole lot better than the surface-applied caps. Plus, they are less prone to getting knocked off. The FlushMount carbide drill bit cuts a shallow 9/16-in.-dia. countersink for the self-stick cap. An adjustable brad-point bit protruding through the center. of the carbide bit drills the pilot hole. Both bits can adjusted for depth of cut. drill, screw and cover. The caps are almost invisible. The same system can used on wood-veneered sheet stock.
          Small nicks and gouges are easy to fix using SeamFil. It works like wood filler but it’s designed for plastic. work a little into the wound and scrape it flush using a putty knife. After the filler dries, use a utility razor to remove any excess. It makes a quick, easy repair that’s only noticeable at close range.

  • Product Advantage

    wooden sheets for pcb drill advantage

    DRILL wear: The Melamine coated board surface layers have undergone adjustments to. extract the abrasive components found in almost every other melamine board. The low-resin degree of the core also increases drill wear resistance created. by the remodified surface layer.

    BURR PREVENTION: A hard, smooth surface. with a satisfied thickness tolerance is an ideal exit platform. for some drill applications.

    HOLE VERIFICATION: White surface area assists distinguish holes drilled melamine board completely.

          Today’s multilayer PCBs feature both through holes and via holes. Through holes have diameters of 5mils or larger. and they are the deepest holes; hence they have high aspect ratios. and are most conveniently mechanically drilled. Via holes are either blind vias or buried vias. Blind vias exposed to one side of the board and stop at the next underlying copper layer. Buried vias start out as blind vias. and are thereafter embedded in the multilayer PCB. connecting the two copper layers intermittent. in the multilayer PCB structure.

          This accomplished by stacking multilayers together. The challenge for any via is to drill through the first copper layer. then drill through the underlying composite material. for example (FR4) without damaging the next copper layer. NSI Laser has developed a dual-head UV/CO2 system to address this exact challenge. The UV laser drills though the first copper layer, but only into the FR4. The CO2 laser is the most suitable for the FR4, and many other composite materials used in PCBs. The most unique feature with the CO2 laser light is that it stops at the second copper layer. The two lasers can operate simultaneously on different parts of the panel PCB panel. reducing the drilling process time.
         Creating via holes by conventional mechanical drilling technology . can only done by careful control of the height. The less the hole diameter, the more difficult mechanical drilling becomes. Another challenge is the aspect ratio (hole diameter to hole depth). Mechanical drilling is suitable for for deep holes with aspect ratios much larger than 1:1. But, when the hole diameter goes below 4mils (100microns), mechanical drilling becomes impossible.
         By comparison, with laser drilling the smaller the hole diameter, the deeper the hole. This is valuable as today’s high density PCBs need smaller and smaller via holes. Thus, laser drilling has gaining in popularity. And this trend is growing. as even higher density PCBs become necessary to accommodate. even more electronic circuitry over a small area. Laser drilling offers a long pathway of opportunities with many more parameters. which can impact the drilling. Not until hole diameters and PCB layer thicknesses approach the micron level. will today’s laser drilling reach. its physical limits.

Properties Units Requirement
Density G/cm2 ≥980
Hardness HD 80±5
Bending Srtength MPa ≥23
Modulus of Elasticity MPa ≥2700
Internal bond MPa ≥0.55
Water Absorption % ≤2
Moisture Content % ≤13
Dimensional Stability
Length Direction ≤0.5
Width Direction % ≥980
Thickness Direction ≤0.5
emission of Formaldenhyde ≤0.5
(Desiccator Method) MGL ≤1.5

Sample:You can pick up PCB BACKUP BOARD Samples here! If you are interested in any of SIZE , click it and get samples right away!samples are FREE, and we only charge discount Door to door courier by international express (such as: DHL, UPS, TNT, FedEx etc..) based on the weight of the samples you choose.


As manufacturer direct sales, yueshan backup board sells with big price advantage, the price we offered are truly based on production cost but not from any distributors or vendors. Even some well-known online companies are actually reseller of China factory products, so why do not work with yueshan to save more ?

Notice below backup board price is for your reference only, which could be up and down from time to time due to raw material cost fluctuation in the market. Our MOQ shipping is 1*20GP, smaller quantity order will surely make the unit price increase a little bit. Some special CUT requirement for our job has to be negotiated before order.

Pcb sheet Material

white pcb shteets
hdf with white melamine foil double sided,density:
980+-30 kg/m3.
th.:2.0/2,50 mm +-0.15 mm.
Surafce:hardness 80+-5HD.
material totally straight,not curved,according to
send samples.
Packing:(packed 200 pcs/pallet)

Size in mm Packing in pcs/pellet FOB price in USD/pcs
1245x1092 200 2.770
1245x1040 200 2.660
1245x939 200 2.440
455.5x608.5 800 0.663
460x610 800 0.663
508x610 800 0.71
535x610 800 0.729

All prices are valid for minimum order of 1 containers and FOB Guangzhou port.there's also other density,hardness, thickness backup panel for enquiries

exchange rate :1:6.8-7.0.if it go up or down exceed 2%,price will be adjusted accordingly

WARNING:he quality pcb backup board,inner core is HDF it uses special melamine ,resin ,with superior hardness 80 +-5HD , totally straight, not curved. Flat, hard surface provides the minimization of burring, Due to good hole quality, when drilled, the inner wall -of the hall is less contaminated and suitable for -precise drill. Due to minimizing Burr and Smear, good in soft and -hard board. * Economically reducing the drill bit wear out .Many backup board distributors are misleading customers with lower priced softer wood lower hardness and density, As professional manufacturer , export to many well-known brand name in this industry, we suggest you checking our samples carefully and compare them with other vendors 'sample regarding the hardness, density & burring minimization, formaldehyde to ensure what you buy is worthwhile



(37”,41”43”)*49 size ,one pallet with 200pcs and 24 pallets in 1*20GP container.

The Forklift carries pallets one by one, and then the pallets are loaded in the container in a row skillfully.
Packaged cartoon boxes are neatly stacked on export pallets with all corner and sides well protected.
When the container is filled with pallets, close the door and seal the container. Write and remember the Seal No. and Container No.. Finally the lorry will take the container to the specified port.

pcb backup board
pcb back up board backup material