Technical Guides & Hardware Specs

How do I stop dust coming into a room under the door?

Fit a bottom seal. The gap under a door is typically 8 to 12 mm across the full width, which is a larger opening than every other gap in the room combined, and it is where most dust arrives.

Which door handle type should I choose?

Match the handle to the door size and how it opens. D-handles suit ordinary doors and cabinet shutters; H-handles are back-to-back pulls for large glass and timber entrances; American and Taiwan handles are contoured pull handles for entrance doors and sliding sashes.

Why does my aluminium sliding window rattle in the wind?

Usually the lock is no longer pulling the two sashes tight together. A crescent lock draws the panels into contact under tension; a worn one, or a touch lock that only catches, leaves enough play for wind to move the panel.

What is a Domal section window?

Domal is a family of aluminium window profiles with its own cross-section, distinct from other sliding window systems. Hardware cut for a Domal section will not fit other profiles, and hardware for other profiles will not fit Domal.

What is the difference between clear and grey VHB tape?

Grey is the structural grade, used where the bond carries load — cladding, facade panels, frame bonding. Clear is for joints that will be visible through glass, where a grey line would show.

Do I need patch fittings or hinges for my glass door?

Hinges for a light shower door swinging from a wall or adjacent panel. Patch fittings on a floor spring for a full-height entrance door. A shower hinge will not carry an entrance door, and the failure is sudden.

Why does my door stop just before closing?

The latching speed valve is set too slow. Most hydraulic closers have two independent valves — closing speed for the main sweep, and latching speed for the last fifteen degrees. If the second is throttled too far, the door arrives at the frame with no momentum and rests there unlatched.

What is the difference between a 2D and a 3D hinge?

A 2D hinge adjusts on two axes — side to side and in or out. A 3D hinge adds vertical adjustment, letting you raise or lower the leaf. If a door has dropped rather than drifted sideways, only a 3D hinge will correct it.

Is stainless steel hardware worth the extra cost?

In a dry interior, usually not — plated mild steel lasts a long time and the difference is hard to justify. In a bathroom, a kitchen, or anywhere with industrial air, yes: once the plating is scratched, corrosion runs underneath it and the mechanism stiffens.

Which silicone should I use on aluminium windows?

Neutral cure. Acetic cure silicone releases acetic acid as it sets, which attacks anodised and powder-coated aluminium finishes and corrodes the metal beneath. Acetic is the one that smells strongly of vinegar.

Which screw should I use in aluminium extrusion?

A self-tapping screw with a pilot hole for anything structural in extrusion, and a self-drilling screw for sheet and thin sections where speed matters. Never a wood screw — its coarse thread strips thin aluminium and the fitting works loose.

How thick should shower enclosure glass be?

Eight millimetres is the common residential choice; 10 mm and 12 mm are heavier, feel more solid and need hardware rated to carry them. A 700 x 1900 mm door is about 27 kg in 8 mm and about 40 kg in 12 mm, and that difference hangs on the hinges for years.

How do I choose a shower hinge for 8 mm or 12 mm glass?

Choose by the joint angle first — 0° for a fixed panel, 90° for wall-to-glass, 180° for glass-to-glass in line, 90° double for a corner — then confirm the hinge is rated to carry your glass thickness. A 12 mm door hung on a hinge intended for 8 mm will sag and eventually drop.

Is a shower hinge the same as a glass door patch fitting?

No. A hinge carries a light shower door swinging from a wall or an adjacent panel. A patch fitting carries a heavy frameless entrance door pivoting on a floor spring, transferring the load at the top and bottom corners.

What size sliding window roller do I need?

Match the roller to the channel profile it runs in and the weight of the shutter, not to the window brand. The reliable method is to remove the old roller and match it physically, because profiles vary between fabricators even at the same nominal size.

Why has my sliding window become hard to push?

Nearly always a worn roller or a dirty track, not a faulty frame. A nylon wheel flattens where it carries the load, and grit packs into the channel. Replacing the rollers and cleaning the track restores the original action at a fraction of the cost of a new window.

How do I choose a door closer size?

Size by the width and weight of the door leaf, not by the size of the room. Door closers are graded by power size, and the grade must cover the door it controls — an undersized closer will not latch the door, and an oversized one makes it too heavy to open comfortably.

What is the difference between an overhead, pencil and capsule door closer?

An overhead hydraulic closer is the general-purpose fitting for ordinary doors. A pencil closer is a slim pneumatic unit for light doors such as screen and mesh doors. A capsule closer is a heavier hydraulic body built for high-traffic entrances.

What width of machar jaali should I order?

Measure the clear opening of the window frame and take the next standard width up, so there is material to grip in the mesh channel. We stock 2 ft, 2.5 ft, 3.5 ft, 3.75 ft and 5 ft roll widths, in full rolls or short cuts.

Which mosquito mesh material lasts longest?

Stainless steel. It does not rust, does not go brittle in sunlight and keeps its tension for years. Plastic mesh is the cheapest and the shortest-lived; powder-coated steel sits in between and is the least visible from inside.

Which sliding window lock is the most secure?

A crescent lock, because it physically draws the two sashes together and holds them under tension rather than simply catching them. A touch lock is more convenient but grips less firmly, and a well-fitted crescent is harder to defeat from outside.

What is a Domal lock and how is it different?

A Domal lock is a mortise lock cut specifically for Domal-section sliding windows. It is not interchangeable with locks for other profiles — the section determines the lock, so the profile must be identified before ordering.

Should I use a 4-inch or 6-inch tower bolt?

Use a 4-inch bolt on internal and lighter doors, and a 6-inch on main doors and larger leaves. The longer bolt engages deeper into the frame or floor socket, so it resists forcing better and tolerates more movement in the door over time.

Why fit two tower bolts on one door?

One at the top and one at the bottom holds the leaf at both ends, which stops it twisting in the frame. A single central bolt leaves both corners free to flex, and on a tall door that is where the weakness is.

What is the difference between a C-channel and a G-channel?

They are different extruded profiles, named for their cross-section. A C-channel is an open C-shaped guide; a G-channel has an additional return lip that captures the roller more fully. The roller must match the channel — they are not interchangeable.

Can I replace a worn track without replacing the window?

Usually yes. The channel is a separate extruded section fitted into the frame, so a worn or bent one can be taken out and replaced while the frame stays in place. Bring an offcut so the profile can be matched exactly.

Do I need a floor spring or a door closer for a glass door?

A frameless glass door needs a floor spring. There is no frame to mount an overhead closer arm to, and the load has to be carried at the pivot, so the mechanism goes into the floor with patch fittings transferring the load at the top and bottom corners.

When does the floor spring have to be decided?

Before the floor is finished. A floor spring is set into a cavity cut into the slab and levelled flush with the finished floor. Retrofitting one into a laid floor means cutting it open, so the decision belongs in the planning stage.

What finishes are available for the SA-33 Aluminium Door Kit?

The SA-33 Aluminium Door Kit is supplied in 5 finishes: Black, Brown, Champion, Matt, and CP (Chrome Plated).

What items are included in a standard door kit assembly?

Each kit includes matching pull handles, mortise lock cylinder/latching bolt, tower bolts, and heavy door stoppers.

When should a capsule door closer (SA-44) be specified over a standard closer?

Capsule door closers (SA-44) are engineered for heavy high-traffic commercial doors weighing over 80kg requiring heavy hydraulic damping.

What glass thickness is compatible with Salasar CP shower hinges?

Salasar CP shower hinges (SA-75 to SA-78) are engineered for 8mm to 12mm toughened safety glass panels.

Where is the Salasar Aluminium & Hardware main store in Raipur?

Shop No. 3, Salasar Aluminium & Hardware, JK Steel Gali, Bhaisthan, Bhawani Patna, Ramsagar Para, Jawahar Nagar, Raipur, Chhattisgarh – 492001.

What is the main difference between anodized and powder-coated aluminium finishes?

Anodizing is an electro-chemical process that integrates the protective oxide layer into the aluminium metal itself, ensuring it will never chip or peel. Powder coating is an electrostatically applied polymer paint layer baked onto the surface, offering a wider range of custom RAL colors and ultra-matte textures.

Which aluminium finish is best for coastal or high-humidity regions?

For coastal environments exposed to salt mist, Class 1 or Class 2 Anodizing (20-25 microns) or Qualicoat Class 2 Architectural Powder Coating provides superior corrosion resistance against pitting and oxidation.

What is the main difference between residential and commercial aluminium extrusions?

Commercial extrusions feature thicker wall sections (typically 2.0mm - 3.5mm), higher tensile alloy tempers (6061-T6 or 6005A-T6), and higher wind load resistance (Class C5) to withstand high-rise wind forces and heavy daily pedestrian usage compared to residential profiles.

Is structural aluminium stronger than steel?

Per unit of weight, structural aluminium alloys (like 6061-T6) offer a superior strength-to-weight ratio compared to mild steel. While steel has higher absolute density, aluminium delivers comparable structural capacity at approximately one-third the total structural weight.

What aluminum alloy is recommended for glass railing shoe channels?

High-tensile 6061-T6 structural alloy is strictly recommended for base-mounted glass railing channels to resist severe cantilever forces and line loads up to 3.0 kN/m without structural yielding.