joint bands

Joint Band

Product Info

Gripset Betta Elastic Joint Band is a waterproof sealing band that is used at wall/floor junctions to protect the most critical area of the waterproofing application. Consisting of a unique grade of rubber, the Elastic Joint Band provides a rupture resistant seal that accommodates expected movement between the abutments of different surfaces. Also performs as the bond breaker for the waterproofing system.

Size: 5 Metre x 100mm Roll

Features & Benefits

  • Easy and time saving installation
  • Eliminates need for bond breaking sealants, foams and tapes
  • Elastic reinforcement at critical movement areas
  • High strength while remaining elastic
  • Long term sealing protection at volatile areas
  • Compatible and guaranteed with all Gripset Betta membranes and adhesives


  • Sealing wall/floor junctions and surface abutments
  • Wet area bond breaker
  • Protection to joints in fish ponds, water tanks, water features
  • Waterproofing joints of structural sheeting materials
  • Sealing joints and junctions on decks, balconies and roofs
  • Sealing movement and control joints
  • Crack repairs on concrete floors before tiling, screeds and toppings

Suitable for pipe/penetration diameters of 1mm – 80 mm.

How To Use

Step 1
Select the Gripset Betta membrane to be used for the waterproofing application. Surface must be clean, refer to instructions of the Gripset Betta membrane being used to ensure surface is correctly prepared.

Step 2
Select correct Gripset Betta primer for the application and prime surface as per instructions on the primer label.

Step 3
Measure the length of area to be sealed and cut the Elastic Joint Band at this measurement. When measuring, allow for a minimum 75 mm overlap onto the Gripset Betta Waterproofing Corner.

Step 4
Using a long bristle brush, apply a liberal coat of the Gripset Betta membrane to the surface, ensuring enough membrane is applied to cover 100% to the rear of the Joint Band. Embed the Joint Band into the wet film of membrane, ensuring the face showing the line of rubber is bedded into the wet membrane. The line of rubber on the rear of the Elastic Joint Band is the central zone and should be used as a guide to be placed at the apex or centre of the junction/joint being sealed. Note – Aim for a minimum 1.5mm wet film of membrane to be applied to the surface before embedding the Elastic Joint Band.

Step 5

Once the Elastic Joint Band has been placed into the wet film of membrane, ensure fabric edges are fully wetted into the membrane film. Using a flat spatula or brush, ensure all creases or air pockets behind fabric edges and rubber section are pushed out. When applied, the Elastic Joint Band should be tightly fitted into position, showing good adhesion to the surface.

Step 6

Ensure all areas where the Elastic Joint Band is overlapping onto Betta Waterproof Corners or onto other sections of the Joint Band, that 100% coverage of wet membrane is applied to fully bond these sections together.

Step 7

Remove any excess membrane on the top surface of the Elastic Joint Band by brushing onto the wall or floor areas.

Once this has been completed, the membrane application should ensure the total Elastic Joint Band surface is covered with wet membrane.


  • Ensure enough wet membrane is applied behind the Elastic Joint Band otherwise proper adhesion will not be achieved.
  • Elastic Joint Band must be bedded into a wet film of the membrane. Do not allow membrane to skin or dry before bedding Joint Band in position.
  • Follow all relevant instructions for the application of the selected membrane.

Gripset Betta Elastic Joint Band is a waterproof sealing band for wall/floor junctions to protect the most critical area of the waterproofing application.

RBT Resistance Band Training





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Educational Resources







How to Eliminate Nagging Joint Pain and Muscle Stiffness with RBT

As we age, joint pain and muscle stiffness can become more frequent unless you are addressing it within your workout. After 22 years of treating physical therapy patients and 30 years of working with adult fitness enthusiasts, it is clear what you need to do within your workout routine to eliminate nagging joint pain and muscle stiffness.

Your workout needs 6 things to eliminate joint pain and muscle stiffness.

1. Foam Rolling & Band Stretching

Don’t think of a warm up as a passive activity that simply lengthens out your muscles. Instead, commit to a 10 to 15 minute pre-workout routine that incorporates foam rolling, band stretching, and band muscle activation.

Make your stretching and muscle activation program specific to your workout if possible. However, doing a full body pre-workout routine is also perfectly fine.

Use this warm up:

2. Core Stabilization

The core, specifically the inner abs (obliques and transverse abdominus), are key stabilizers to every movement we make. Without their stabilization we immediately put more pressure on our knees, ankles, elbows, wrists and shoulder joints to stabilize.

Don’t think sit ups or crunches. They will actually add to the joint stress. Think stabilization exercises like planks, pillars, and mountain climbers. Teaching your abs how to keep the low back from excessive movement will allow joints further away from your center of gravity to remain more stable and not get beat up.

3. Auxiliary Exercises

Primary exercises typically use higher levels of resistance. These are fun because you get to test your strength out. However, just doing those types of heavy resistance exercises will ultimately lead to excessive joint and muscle stiffness, especially as our body ages.

Auxiliary exercises allow you to focus on strengthening in different planes using different movement patterns while typically applying lighter resistance. However, these auxiliary type exercises allow you to address strength imbalances, inflexibility and stability issues that the primary exercise won’t.

Ways to use Towel-Band Auxiliary Training

4. Integration vs Isolation

The body was designed to work as a unit. Always doing isolation movements (like strict curls, bench presses or seat military presses) makes our joints move in a very unnatural pattern. It also places high levels of stress on a particular joint versus dispersing it among several joints and muscles.

Incorporate integrated (multi-joint) movements into your workout as often as possible. You will find your body will still build strength and muscle without all the joint and muscle stiffness.

5. Consistency

Staying consistent and making sure your muscles and joints routinely are challenged with resistance 3 to 4 times per week is important. Joints and muscles that are not routinely challenged will experience much higher levels of post workout stiffness and pain.

All workouts don’t have to be done with high intensity or using heavy weights to be beneficial. Light weight resistance or band ascending resistance is a great way to train 2 times per week.

6. Recovery

As we age, making sure we do what our body needs to best recover is important. Especially if you want to workout 3 to 5 times per week doing various types of activities. Recovery should include things like optimal hydration, foam rolling, band stretching, proper sleep and built in rest days.

Without these key recovery activities, your body will slowly breakdown between workouts. Recurrent breakdown of joint and muscle tissue with poor recovery equals higher levels of joint pain and stiffness.

After 30 years of working with adult fitness enthusiasts, it has become very clear to me what you need to do to eliminate joint pain and muscle stiffness. ]]>