What the PU Seal Does
- 01Cuttable The PU seal holds the hair when cut.
- 02Flat and soft Comfortable against the scalp.
- 03No return hair Clean top edge with no short hairs.
- 04Versatile Works for beaded rows, sew-ins and micro ring installs.
Specifications for Flat Weft Extensions
- Weft
- Hybrid flat weft with PU seal
- Weight
- 50 g per weft
- Hair grade
- Double Drawn Remy
- Texture
- Straight, Body Wave
- Length
- 14" to 26" (core lengths 16", 18", 20", 22", 24")
- Color
- 30+ shades, see Color Chart: #1, #1B, #2, #4, #6, #8, #10, #12, #18, #24, #60, 613, Ash Blonde, Balayage, Piano, Ombre
- MOQ
- 5 wefts per color
Flat Weft Extensions vs Other Wefts
| Flat Weft | Genius Weft | Hand-Tied | Machine Weft | |
|---|---|---|---|---|
| Thickness | Thin | Ultra-thin | Ultra-thin | Standard |
| Cuttable | Yes | Yes | No | Yes, with sealing |
| Price | Mid | Mid | Higher | Lower |
Who Buys It
Salons and extension brands, most of them in North America. They add flat wefts as a mid-priced, cuttable row option next to genius and hand-tied wefts, so clients can choose a thin install at a lower service price.
How Flat Wefts Are Installed
- 1Section a straight row and add a line of micro beads or a braided track
- 2Measure the flat weft to the row and cut to size
- 3Stack 1 to 2 wefts and sew them to the row
- 4Add rows for the length and volume needed
Move-ups every 6 to 8 weeks. The hair can be reused for several installs.
Colors
The PU seal is clear, so it takes on the shade of the hair. Rooted and balayage shades help hide the row on lighter clients, since the top edge sits close to the scalp.
Aftercare Tips for Clients
- Keep flat irons and hot brushes off the PU seal; heat can soften it and loosen the hair at the top edge
- If a weft is cut, check that the PU holds the cut end before sewing it in
- Other care is the same as our genius wefts: gentle root washing, a fully dried row and a move-up every 6 to 8 weeks
Lead Time and Packing
- Sample
- 5–7 days
- Bulk order
- 15–25 days
- Packing
- Each weft in a sealed bag with a length and color label
- Shipping
- Express, air or sea freight. See Shipping
Flat Weft Extensions FAQ
Is flat weft the same as genius weft?
Both are thin and cuttable. Flat weft uses a soft PU seal, while genius weft is an ultra-thin machine-sewn weft. Many salons stock both.
How many flat wefts does a full head need?
At 50 g each, 2 to 4 wefts in 1 to 3 rows, depending on the client's density and the length added. The MOQ of 5 wefts per color covers one or two full heads in a shade.
Does the PU seal hold up to washing?
Yes. The seal is soft PU, not glue, so it does not dissolve in shampoo. Heat is what softens it, which is why clients keep hot tools off the top edge.
Quote for Hybrid / Invisible Flat Weft Extensions
Tell us the specs and quantities you need for your Hybrid / Invisible Flat Weft Extensions order. You’ll get pricing and lead time within one business day.