Internet #202343460

Model # MF-100

Store SKU #1002771745

0656690123729

Strait-Flex

3 in. x 100 ft. Mid-Flex 300 Laminated Drywall Corner Tape MF-100 (Case of 10)

$ 266 00 /case
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Frequently Bought Together

Frequently Bought Together

Product Overview

Mid-Flex 300, a laminated composite corner tape from Strait-Flex, beautifully finishes outside corners, off angles, and vaulted ceilings. Mid-Flex 300 is also a great choice when replacing damaged metal corner bead. This 3 in. tape features a pre-finished surface with a PURlaminated nose ensuring perfect corners without paper fuzz-up during finishing and sanding. The tapes outer edge features a diamond punch pattern for a superior bond, faster drying, with no rippling or blistering. To apply, measure and cut to length, then fold in half at center crease with print side facing out. For repairing damaged corner bead, tap the damaged area of the corner bead to be recessed below the corners edge. Apply all-purpose compound to corner. Press Mid-Flex 300 into the wet compound, adjust to create a straight line, and wipe down with a taping knife using additional pressure to the outer edge of the tape. Immediately apply a light skim coat to the perforated edges and let dry. Apply final coat, let dry, and sand.
  • 3 in. x 100 ft.
  • Off angles and outside 90 corners
  • Outside corners where a large fill or straightening is required
  • Outside corners of bay windows, coffers, vaulted ceilings and butterfly vaults
  • Composite backing ensures straight, strong, corners
  • Use in place of metal corner bead
  • Tapes outer edge features a diamond punch pattern for a superior bond, easier feathering, faster drying, with no rippling or blistering
  • California residents see Prop 65 WARNINGS

Product Overview

Model #: MF-100
Sku #: 1002771745
Internet #: 202343460

Mid-Flex 300, a laminated composite corner tape from Strait-Flex, beautifully finishes outside corners, off angles, and vaulted ceilings. Mid-Flex 300 is also a great choice when replacing damaged metal corner bead. This 3 in. tape features a pre-finished surface with a PURlaminated nose ensuring perfect corners without paper fuzz-up during finishing and sanding. The tapes outer edge features a diamond punch pattern for a superior bond, faster drying, with no rippling or blistering. To apply, measure and cut to length, then fold in half at center crease with print side facing out. For repairing damaged corner bead, tap the damaged area of the corner bead to be recessed below the corners edge. Apply all-purpose compound to corner. Press Mid-Flex 300 into the wet compound, adjust to create a straight line, and wipe down with a taping knife using additional pressure to the outer edge of the tape. Immediately apply a light skim coat to the perforated edges and let dry. Apply final coat, let dry, and sand.

  • 3 in. x 100 ft.
  • Off angles and outside 90 corners
  • Outside corners where a large fill or straightening is required
  • Outside corners of bay windows, coffers, vaulted ceilings and butterfly vaults
  • Composite backing ensures straight, strong, corners
  • Use in place of metal corner bead
  • Tapes outer edge features a diamond punch pattern for a superior bond, easier feathering, faster drying, with no rippling or blistering
  • California residents see Prop 65 WARNINGS

Info & Guides

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Compare Similar

Compare Similar Products
Brand Strait-Flex Strait-Flex Strait-Flex Strait-Flex
Name 3-3/8 in. x 50 ft. Arch-Flex Composite Drywall Joint Tape AF-50S 4-1/4 in. x 10 ft. X-Crack Framing Alignment Drywall Joint Tape X-R-10 3 in. x 100 ft. Mid-Flex 300 Laminated Drywall Corner Tape MF-100 (Case of 10) Original 2-3/8 in. x 100 ft. Drywall Joint Tape SO-100
Price
$18.03 /box
$114.94 /box
$266.00 /case
$307.03 /case
Ratings (5) (7) (3) (0)
Drywall Features No Additional Features No Additional Features No Additional Features
View Product View Product View Product View Product

Specifications

Dimensions

Product Thickness (mm)
0.69
Product Width (in.)
3
Tape Length (ft.)
100

Details

Color Family
Black
Drywall Features
No Additional Features
Material
Paper
Number of Rolls Included
12
Product Weight (lb.)
39lb
Returnable
90-Day

Specifications

Dimensions

Product Thickness (mm)
0.69
Product Width (in.)
3
Tape Length (ft.)
100

Details

Color Family
Black
Drywall Features
No Additional Features
Material
Paper
Number of Rolls Included
12
Product Weight (lb.)
39lb
Returnable
90-Day

Questions & Answers

HOW MANY IS IN A BOX

Asked by: WILBUR
A case of Mid-Flex is 10, 100 ft. rolls.
Answered by: CommunityAnswer
Date published: 2016-02-18

Can it be used on flat joints

Can it be used on flat joints
Asked by: BoBo
Yes, this product can be used on flat drywall joints but is specifically designed for corner applications.
Answered by: CommunityAnswer
Date published: 2019-02-22

I applied the straight flex pro 90 laminent side out .....am i ok?

Asked by: Prowalls
The print side needs to be facing out.
Answered by: Mud-Pro
Date published: 2018-01-10

Is the "3 in. x 100 ft. Mid-Flex 300 Laminated Drywall Corner Tape MF-100" only for outside corne...

Is the "3 in. x 100 ft. Mid-Flex 300 Laminated Drywall Corner Tape MF-100" only for outside corners? If so, is there something equivalent for inside corners? (I need to tape over existing inside 2" corner paper tape that has split, and pulled loose, pulling the sheetrock facing with it.)
Asked by: PHL3
The MF-100 is for both inside and outside corners. It will work fine for the application you described.
Answered by: Christina
Date published: 2016-11-01
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Customer Reviews

3 in. x 100 ft. Mid-Flex 300 Laminated Drywall Corner Tape MF-100 (Case of 10) is rated 4.7 out of 5 by 3.
Rated 4 out of 5 by from Does the job bridging gaps and providing a constant corner... Used this on a 100+ year old bldg. w/ cathedral clgs. and irregular framing. Despite lots of shimming the new sheetrock was not perfect along the hips which had 2" deflection over a 12 ft. span. This tape is sturdy and the additonal 1" width over paper is excellent. It is a bit thick at the bend but nicely tapered at the edge. You will use a bit of mud to make a good transition. End result is a a straight and sharp corner.
Date published: 2012-11-06
Rated 5 out of 5 by from Great product for inside corners that are not 90° I have several rooms in my house that do not have typical corners. Each year I get cracks in these corners due to the house settling. So this year I decided to do something about it. Instead of fixing it with the standard paper tape or the standard mesh tape, I searched for something that would last longer. That's when I found the Mid-Flex corner tape. It MUCH MUCH stronger than anything else I have found. It worked great on my 120°corners. It will work on any angle corner. It gives a very crisp straight line from top to bottom. I would highly recommend this for any corner that is not standard. Additionally, I had to call the manufacturer with a technical question. The person I spoke with was extremely knowledgeable.
Date published: 2015-04-28
Rated 5 out of 5 by from Perfect for odd angled joints So much easier to use than regular tape for angled joints. Holds the angle firmly.
Date published: 2013-03-27
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