H.B. Fuller PD 2128 is a high-tack acrylic pressure-sensitive adhesive (PSA) suitable for a variety of applications, including insulation bonding, flexible circuits, and general bonding. This PSA offers excellent insulation properties, making it ideal for applications where high insulation is required. H.B. Fuller PD 2128 is a ready-to-use pressure-sensitive adhesive that provides strong bonding capabilities.

Product Type: 1K (1 component) Adhesive, Pressure Sensitive Adhesive

Application Area: Fiber Glass Insulations, Nonwoven

Application Method: Brush, Roll Coater, Spray

Chemical Family: Acrylics & Acrylates

Features: Easy To Clean, Excellent Freezing Protection, Fast Tack, Good Mileage, Heat Resistance, High Coverage, High Insulation Properties, High Solids Content, Humidity Resistant, Low Odor, Low Viscosity, Moisture Resistant

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Markets
Applications
Application Area
Application Method
Application Guidelines

Surface Preparation

  • Surfaces must be free of dust, dirt, oil, grease, and moisture to ensure proper adhesion.

Application

  • PD2128D can be applied by spray, roll coat, or brush application.

Coverage

  • Coverage rates depend on the porosity of the substrates and method of application.

Fiberglass Insulation:

  • Spray the adhesive on one side of fiberglass insulation at a coverage of 3 – 6 grams wet/ft².
  • Allow 30 to 60 seconds depending on temperature and humidity.
  • Attach to steel or aluminum surface using hand pressure only.

Mineral Wool to Itself:

  • Spray the adhesive to both surfaces.
  • Allow 30 to 60 seconds depending on temperature and humidity.
  • Combine with hand pressure.
  • Mineral wool failure should occur once the water has completely dissipated (depends on temperature and humidity).

Fiberglass Facing Material to Mineral Wool and Fiberglass Insulation:

  • Spray or roll coat the adhesive onto the facing material.
  • Within 30 – 60 seconds, combine the facing to mineral wool or fiberglass insulation using light pressure.
Spray / Pump Equipment Recommendations
  • Graco, Binks, and DeVilbiss HVLP hand guns.
  • Pressure Feed Systems are recommended for best control to achieve the desired delivery rate and spray pattern.
  • The adhesive can be dispensed into the spray guns in several ways:
  • Pressure Pot: Stainless steel or plastic liner; intake tube must be stainless steel.
  • Pumping Equipment: Double Action diaphragm pump, Graco Husky 1040.
  • Gravity Feed: Feed from 300-gallon tote bin positioned on an elevated tower.
Cleanup Procedures

When still wet, use warm soapy water For dry adhesive removal: MEK, isopropyl alcohol, or “environmentaly safe” solvents such as Citrex (Inland Technology)

Properties

Color (Properties)
Technical Data
ValueUnitsTest Method / Conditions
Density8.6lb-mass/gal-
pH3.5 - 4.5--
Solid Content (Non-Volatiles)54 - 58%-
Viscosity200 - 1,100cP-
HVLP Starting Recommendations

HVLP Starting Recommendations

Type Fluid Nozzle Fluid Nozzle Fluid Pressure

Atomization Pressure

Graco 239542 239592 239592 5-10 psi 30-50 psi
Binks BBR 20 20 5-10 psi 30-50 psi
DeVilbiss JGA 510 FX FX 5-10 psi 30-50 psi

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Regional Availability
  • Europe
  • India/MiddleEast/Africa (IMEA)
  • Latin America
  • North America

Storage & Handling

Shelf Life
1 year
Storage Conditions
  • Protect from freezing
  • Storage temperatures between 60-85°F
  • No special handling instructions due to toxicity. This product contains limited amounts of residual monomer.
  • Under normal handling and use conditions the residual monomer should not present a hazard. In storage, the monomer will migrate from the emulsion and establish an equilibrium between the headspace in the storage container and the liquid emulsion.
  • Levels in excess of acceptable exposures can accumulate in non-vented headspaces above the emulsion. All procedures appropriate for a confined space entry should be completed prior to performing any work in a bulk storage tank.
  • 12 months from date of manufacture when stored in original, unopened container at recommended temperature conditions.