“Filling tape” could refer to several different types of tape used for filling purposes:

1. **Joint Filling Tape**: In construction or DIY projects, joint filling tape is commonly used to cover gaps or joints between surfaces, such as drywall seams. This type of tape is usually made of paper or fiberglass mesh coated with adhesive. After applying the tape, it’s covered with joint compound or filler to create a smooth surface.

2. **Filling and Sealing Tape**: There are tapes specifically designed for filling and sealing gaps or cracks in various surfaces, such as walls, windows, or doors. These tapes often have an adhesive backing and are made of flexible materials like rubber or silicone to accommodate movement and expansion.

3. **Caulk Filling Tape**: Caulk filling tape is a type of tape used in conjunction with caulk or sealant to create a neat, clean line when filling gaps or joints around fixtures, trim, or moldings. This tape is applied before caulking and removed after the caulk has been applied and smoothed.

4. **Automotive Filling Tape**: In automotive repair, filling tape may refer to tapes used for filling and masking off areas before painting or applying body filler. These tapes are designed to adhere to various surfaces and withstand the conditions encountered in automotive refinishing processes.

5. **Packing Tape for Filling Boxes**: When packing boxes for shipping or storage, filling tape may refer to packing tape used to fill voids or gaps within boxes to prevent items from shifting during transit. This type of tape is often used in conjunction with packing materials like bubble wrap or packing peanuts.

Without further context, it’s challenging to determine the specific type of filling tape you’re referring to. If you have a particular context or application in mind, please provide additional details for a more accurate explanation.