Affinity™ Light Body RF Hydroactive Impression Material

Affinity™ Light Body RF Hydroactive Impression Material

If you prefer a light body impression material that is more thixotropic and stays where it’s placed; this is how Affinity™ Light Body RF (Regular Flow) was designed. Light Body RF lends itself well to those who like to drive the impression material into the sulcus with an air syringe.


  • Very thixotropic light body impression material
  • Designed for the “air assisted” placement technique where the Dentist uses an air syringe to push the light body into the sulcus
  • Stays where it is placed, moves under air pressure, then stops moving
  • Available in regular and fast set

Clinical Techniques

Affinity Light Body RF is a more thixotropic material that stays where it’s placed and is driven into the sulcus with an air syringe.

Full Quadrant Impression using AFFINITY InFlex, AFFINITY Light Body RF and Quad-Tray XL
Dentistry and photography courtesy of Christopher Ramsey, DMD.

InFlex Maximum Support Tray Material is loaded onto both sides of a Quad-Tray XL

After syringing Affinity Light Body RF (Regular Flow) around the inlay preparation and implant site, the Quad-Tray XL encompasses the full quadrant.

Perforated buccal wall locks impression material to the tray.

InFlex flows through the Quad-Tray XL’s slotted lingual and buccal walls to lock the impression material and tray together.

Precise detail is achieved every time.


For working and set times, please refer to the “Technique Designed” Viscosities chart.
Learn more about 3rd Generation AFFINITY Hydroactive Impression Materials.
View Maximizing Impression-Taking Efficiency and Accuracy by Fred H. Peck, DDS, FAACD
Click here to view

Instructions For Use / SDS

Click here to view the Affinity Light Body RF Instructions for Use / SDS.

Product Configurations

Regular Set

  • 2-50mL cartridges, instructions/SDS
    • with mixing tips
    • without mixing tips

Fast Set

  • 2-50mL cartridges, instructions/SDS
    • with mixing tips
    • without mixing tips


What are the working and set times of both Affinity regular set viscosities and fast set?2019-05-07T15:45:35-04:00

The working time of Affinity Regular Set material is 1:45 mins with a setting time of 2:30 mins.
Affinity Fast Set materials have a working time of 1:10 mins and a set time of 1:45 mins.

How is Affinity different from other impression materials?2019-05-07T15:46:24-04:00

Only Affinity uses branched resin chemistry for 3-dimensional cross-linking resulting in a higher tear strength, refined fillers, and an even distribution of surfactant. Other impression materials use linear resin chemistry with an uneven distribution of surfactant resulting in less accurate impressions that are more prone to tearing of the thin interproximal and sulcus fins.

I really like my light body from another brand. Can I use Affinity Heavy Body (or other Affinity Tray Materials) and my light body together?2019-05-07T15:47:55-04:00

Light and heavy body materials from another brand may be mixed but strict attention must be paid to the working and set times as they need to mimic or exceed Affinity’s.

How can I prevent air bubbles in my wash material?2019-05-07T15:48:11-04:00

Always keep the tip of the mixing tip fully immersed in the Light Body fully as it is syringed around the prep sites.

I’m having difficulty loading Affinity InFlex into Quad-Trays. Are there any tips that will help?2019-05-07T15:48:27-04:00

It is important to work quickly when loading Quad-Trays. Dispense Affinity InFlex in an S-pattern onto the non-prep side after running a bead of material around the periphery of the tray. Immediately turn the Quad-Tray over and repeat on the prep side.

Affinity sets more quickly compared to what I was using before. What can I do?2019-05-07T15:48:40-04:00

If using Fast Set, switch to Affinity Regular Set impression material. Do not attempt to adjust the temperature of the material in order to slow down the set.

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