Pro Max · Gypsum board
Stronger than the standard asks.
Lighter to lift.
Imported gypsum board for ceilings and partitions.
The highlights.
Strength
Stronger than the standard asks.
A board is bent until it breaks. IS 2095 sets the least load that it must carry.
Pro Max: supplier test certificate; each figure is a minimum. IS 2095 (Part 1): 500 N and 180 N for a 12.5 mm board; Pro Max is 12 mm. These are test loads on the board, not loads that you can hang from it.
Weight
Lighter to lift.
Lighter on the frame.
One board on the scale. Easy for two people to carry, and the ceiling frame carries less.
Weight, on one scale.
Kilos in one board of 4 ft × 6 ft.
Pro Max: 15.3 kg, 1220 × 1830 × 12 mm. Gujarat boards are unbranded: 17 to 18 kg per board is what we see in the market. Per square metre, Pro Max is 6.85 kg at 12 mm; Gyproc publishes 7.56 kg for its 12.5 mm plain board. Choose the frame from the section maker’s span table.
Inside the board
Paper. Gypsum. Paper.
Gypsum is set between two papers. Made on German machinery, with selected paper and chemicals.
Drawing of one board, not to scale: the board is 12 mm thick. The long edges are tapered and wrapped in paper.
Zip tape.
Tear once.
One 24 mm tape closes each pair of boards at the two short ends. Start the tear at one end of the tape. It runs along the middle to the other end, and the pair comes apart. No knife.
On the ceiling
A ceiling.
Board by board.
A level Metal-Max frame. Then the ivory face of each board.
The frame
Frame it right.
A flat ceiling starts with a level frame. Metal-Max sections, marked METAL-MAX.
Eight rules for a flat ceiling.
- Fix the perimeter channel level on all walls.
- Hang the intermediate channels straight and level.
- Clip each ceiling section. Do not leave one loose.
- Lay the boards across the ceiling sections.
- Stagger the end joints from row to row.
- Keep screws 10 mm from a bound edge and 13 mm from a cut edge.
- Set each screw head just under the paper.
- Tape and fill every joint before you paint.
Common practice for a 12 mm board. The span and the load set the final spacing: use the Metal-Max table for your ceiling.
On the wall
A partition.
Stud by stud.
Metal-Max studs at 610 mm. Then boards on both faces, with staggered joints.
Where it goes
One board.
Many buildings.
Ceilings, partitions, wall lining, bulkheads and coves. Inside, in dry areas.
On site
Cut. Fix. Joint.
A knife, a screwdriver and a jointing knife. Fix the boards dry. Then finish the joints.
Score the face, snap the board, cut the back paper. Set each screw head just under the paper. For dry internal areas only.
Standards
Made to a standard.
Made clean.
As the maker states for this board. Ask us for the certificates.
Properties
Sixteen properties.
Your ceiling
How many boards?
One board covers 24 sq ft. Add for cuts and waste.
Boards only. For a partition, count both faces. Sections, screws, tape and compound are separate.
Questions
What contractors ask.
How strong is it?
It carries more than 660 N along the board and more than 280 N across it before it breaks. IS 2095 asks 500 N and 180 N of a 12.5 mm board.
What size is the board?
1220 × 1830 mm, 12 mm thick. That is 4 ft by 6 ft: 24 sq ft.
What does one board weigh?
15.3 kg. A Gujarat board of the same size is 17 to 18 kg.
How do I open a pair of boards?
Start the tear at one end of the end tape. The tape opens along its middle, from one end to the other. You do not need a knife.
Which side faces the room?
The ivory face. The brown back, with our logo, goes against the frame.
Where do I use it?
Inside the building, in dry areas: false ceilings, partitions, wall lining, bulkheads and coves.
Can I use it in a bathroom or outside?
No. Pro Max is a standard board for dry internal areas.
What frame do I need?
Galvanised steel ceiling sections or partition studs. A lighter board puts less weight on the frame. Common practice is intermediate channels at 1220 mm and ceiling sections at 457 mm, and studs at 610 mm. Use the Metal-Max table for your span. We make Metal-Max sections at Panvel.
How do I cut it?
Score the face paper with a knife along a straightedge. Snap the board. Cut the back paper.
How do I fix it?
With drywall screws into the steel sections. Set each head just under the paper. Do not break the paper.
How do I hide the joints?
Put joint tape and joint compound in the tapered joint. Let it dry, sand it lightly, then prime and paint.
How do I store it?
Flat, off the floor, under cover. Do not stand the boards on edge.
Where do I buy it?
From Sai India Gypsum at Panvel, supplied to any place. Send us a WhatsApp message.
Order
One size. Ready to supply.
1220 × 1830 × 12 mm. 15.3 kg per board.
Imported board, supplied from Panvel to any place. Metal-Max steel sections for the frame are made at Panvel.