Paper-Faced Metal Corner Bead

What it is

Paper-faced metal corner bead is a drywall trim made of a galvanised steel, aluminium or Al-Zn strip laminated to joint paper. The metal core holds the corner straight and absorbs impact; the paper wings bed into joint compound exactly as joint tape does, so the finished corner is flush with the board instead of sitting proud of it. XIUJUN makes the tape-on family to ASTM C1047: 90° outside corner in four wing widths (B1W, B1XW, B1XXW, B1 Super Wide), a low-nose micro bead, 90° inside corner (B2), L trim (B4), J trim (B9) and a 3/4" bullnose (SLOC), supplied in 8, 9 and 10 ft lengths.

Also searched as drywall corner bead · paper-faced metal · tape-on corner bead · drywall corner sticks · no-coat drywall corners · levelline drywall corner

Brand names are listed only to describe the product type buyers ask for; XIUJUN is not affiliated with them.

Paper-faced metal corner bead and trim profiles on a blue background

Why paper-faced rather than nail-on bead

A nail-on or screw-on bead leaves a metal nose sitting a few millimetres proud of the wall, and the fasteners are a row of points where the paper face can telegraph through paint. A paper-faced bead is bedded in compound and taped over, so the profile disappears under the finish and the corner reads as a crisp edge of plaster rather than a strip of metal screwed to it.

The paper also does the cracking work. Compound bonds to paper, not to zinc, so the feather of the finishing coat keys into the facing instead of sitting on top of it. That is what keeps the edge line from shadowing after the wall has been through a heating season.

Which profile for which corner

B1W — 90° outside corner, 3/4" legs, 13/16" wings. The default for residential work on 1/2" board.
B1XW / B1XXW — extra-wide and extra-extra-wide wings for cut edges, double-layer board and repairs where the board line has wandered.
B1 Super Wide / Micro Bead — 1-1/16" wings and a reduced nose height; in most cases this saves one coat of compound over a standard bead.
B2 — true 90° inside corner, for the vertical and ceiling intersections where a taped corner alone keeps cracking.
B4 — “L” trim where board abuts a suspended ceiling, beam, masonry wall, plaster or an untrimmed door and window jamb.
B9 — “J” trim that wraps the rough edge of the board and closes it, so no cut gypsum shows.
SLOC / TXJ-135 — 3/4" bullnose radius for 90° outside corners, and the 135° round version for splayed corners.

Profile dimensions, inches. EL = even leg · NB = no bead. A is the leg that beds on the board, B and C the wings, D the nose depth.
Style	A	B	C	D
B1W	3/4"	13/16"	9/16"	3/4"
B1W EL	3/4"	11/16"	11/16"	3/4"
B1XW	5/8"	15/16"	15/16"	5/8"
B1XW EL	5/8"	13/16"	13/16"	5/8"
B1XW NB	5/8"	15/16"	11/16"	5/8"
B1XW ELNB	5/8"	13/16"	13/16"	5/8"
B1 Super Wide	11/16"	1-1/16"	1-1/16"	11/16"
B1XXW EL	3/4"	1-1/4"	1-1/4"	3/4"
Micro Bead	3/4"	15/16"	15/16"	3/4"
B2 (inside)	5/8"	3/8"	3/8"	5/8"
B4 (1/2")	1/2"	15/16"	1-5/16"	—
B4 (5/8")	5/8"	13/16"	1-5/16"	—
B9J (1/2")	1/2"	9/16"	5/8"	1-1/16"
SLOC (bullnose)	5/8"	3/4" radius	5/8"	—

How a tape-on bead is fitted

Cut to length with aviation snips, square to the profile — never with a saw that flattens the wings.
Lay a generous bed of joint compound along both sides of the corner, slightly wider than the wings.
Press the bead into the compound, align the nose with a straight edge, and wipe the excess back over the wings with the taping knife.
Let the bed coat dry, then apply the first finish coat feathered 2" beyond the wing, and a second coat 6"–10" wide on each side of the corner.
Sand lightly when dry. The wide steel wings act as the straight edge, so the corner stays true through both coats.

Cartons, pallets and loading

Outside-corner profiles ship 25, 50 or 100 pieces to the carton depending on length and wing width; J trim packs 50 or 100 pieces with 54 cartons to the pallet. Cartons are printed to your artwork or left neutral. Container loading is worked out from the profile height and the mix of styles, and a loading plan is issued with the quotation.

At a glance

Profiles	90° outside (B1W, B1XW, B1XXW, B1 Super Wide), micro bead, 90° inside (B2), L trim (B4), J trim (B9), 3/4" bullnose (SLOC), 135° round (TXJ-135)
Core	Galvanised steel, aluminium or Al-Zn steel strip
Facing	Joint paper laminated to the profile; printable for private label
Standard lengths	2.44 m (8 ft), 2.74 m (9 ft), 3.05 m (10 ft); J trim from 2.13 m (7 ft)
Standard	ASTM C1047
Wallboard	1/2" and 5/8" board; the B1 outside-corner series fits any thickness
Packing	25, 50 or 100 pieces per carton; J trim 50 or 100 per carton, 54 cartons per pallet
Private label	Carton print and neutral packing

Answers

Specification questions

What is the difference between paper-faced corner bead and metal corner bead?

Metal corner bead is fixed with nails, screws or a clinch-on tool and leaves a metal nose at the corner. Paper-faced bead is bedded in joint compound and taped over, so the corner finishes flush and paints like the wall. It also removes the row of fasteners that can telegraph through the finish.

Does the B1 series fit any wallboard thickness?

Yes. The 90° outside-corner series is made for use on any thickness of wallboard, which is why it is quoted without a board thickness. For cut edges and double-layer work, step up to the extra-wide B1XW or B1XXW wings.

What does ASTM C1047 cover?

ASTM C1047 is the specification for accessories for gypsum wallboard — bead, trim and the like. It fixes dimensions and tolerances, coating and straightness, so a bead bought against it will line up with the board and the compound the same way every time.

Which profile replaces a bullnose corner?

SLOC, the 3/4" bullnose outside corner, tape-on. It creates the rounded corner without a separate radius bead, and TXJ-135 does the same job on a 135° splayed corner.

Can the carton carry our brand?

Yes. Cartons are printed to your artwork, or supplied neutral with no XIUJUN mark, on the same production run. Send the artwork with the order and a proof comes back before printing.

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