Basic prebonder

Fine sandblasting unit for the dental office

The first scientifically validated fine sandblasting unit for clinical surface conditioning of restorations prior to final cementation. The Basic prebonder standardizes the pretreatment of zirconia, metal alloys, hybrid materials, and modern polymers, reliably preventing errors caused by insufficient sandblasting, excessive energy input, and resulting bonding failures. Based on Renfert’s proven Basic quattro IS technology, the Basic prebonder offers a practical, modular system. Flexible tank options and an ergonomic handpiece make clinical surface conditioning simple and efficient.

Advantages

  • Reliable bonding through standardized surface conditioning.
  • Reproducible results thanks to validated pressure range and controlled sandblasting parameters.
  • Gentle on materials due to precise energy dosing.

Details

  • Consistent energy input via the Prebonder control tip for a defined working distance.
  • Uniform surface roughness through the Prebonder jet nozzle with a homogeneous spray cone.
  • Scientifically validated pressure range for optimal bonding. 
  • Clear process control with precision manometer and marked working range.
  • Even abrasive flow provided by the Renfert Venturi mixing chamber.
  • Precise blasting pulses thanks to IS (Immediate Stop) system without bleed-off.
  • Flexible use with a modular tank concept for different sandblasting operations in the dental office.

Basic prebonder, 70-250 µm, 100-120 V

Item number 29694250
Description:

Fine sandblasting unit for surface conditioning of restorations prior to adhesive cementation.

Scope of delivery:
1 x Prebonder tank: Only for 50 µm Prebonder surface pro abrasive incl. special nozzle (jet nozzle), spacer pin / focusing aid (control tip), additional 2 bar linear pressure reducer, 4 replacement spacer pins / focusing aids (control tip), 1 test surface for monitoring the sandblasting parameters (control pad), 1 x classic fine sandblasting tank 70–250 µm incl. jet nozzle 0.8 mm

Basic prebonder, 70-250 µm, 220-240 V

Item number 29691250
Description:

Fine sandblasting unit for surface conditioning of restorations prior to adhesive cementation.

Scope of delivery:
1 x Prebonder tank: Only for 50 µm Prebonder surface pro abrasive incl. special nozzle (jet nozzle), spacer pin / focusing aid (control tip), additional 2 bar linear pressure reducer, 4 replacement spacer pins / focusing aids (control tip), 1 test surface for monitoring the sandblasting parameters (control pad), 1 x classic fine sandblasting tank 70–250 µm incl. jet nozzle 0.8 mm

Basic prebonder, 25-70 µm, 100-120 V

Item number 29694050
Description:

Fine sandblasting unit for surface conditioning of restorations prior to adhesive cementation.

Scope of delivery:
1 x Prebonder tank: Only for 50 µm Prebonder surface pro abrasive incl. special nozzle (jet nozzle), spacer pin / focusing aid (control tip), additional 2 bar linear pressure reducer, 4 replacement spacer pins / focusing aids (control tip), 1 test surface for monitoring the sandblasting parameters (control pad), 1 x classic fine sandblasting tank 25-70 µm incl. jet nozzle 0.8 mm

Basic prebonder, 25-70 µm, 220-240 V

Item number 29691050
Description:

Fine sandblasting unit for surface conditioning of restorations prior to adhesive cementation.

Scope of delivery:
1 x Prebonder tank: Only for 50 µm Prebonder surface pro abrasive incl. special nozzle (jet nozzle), spacer pin / focusing aid (control tip), additional 2 bar linear pressure reducer, 4 replacement spacer pins / focusing aids (control tip), 1 test surface for monitoring the sandblasting parameters (control pad), 1 x classic fine sandblasting tank 25-70 µm incl. jet nozzle 0.8 mm
Basic prebonder, 70-250 µm, 100-120 V Basic prebonder, 70-250 µm, 220-240 V Basic prebonder, 25-70 µm, 100-120 V Basic prebonder, 25-70 µm, 220-240 V
Item number 29694250 29691250 29694050 29691050
Dimensions (W x H x D) (3-4 tanks) 395 x 320 x 610 mm 395 x 320 x 610 mm 395 x 320 x 610 mm 395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding 0.6 - 1 bar
8.7 - 14.5 psi		 0.6 - 1 bar
8.7 - 14.5 psi		 0.6 - 1 bar
8.7 - 14.5 psi		 0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting 0.8 bar
11.6 psi		 0.8 bar
11.6 psi		 0.8 bar
11.6 psi		 0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting 1 - 6 bar
14.5 - 87 psi		 1 - 6 bar
14.5 - 87 psi		 1 - 6 bar
14.5 - 87 psi		 1 - 6 bar
14.5 - 87 psi
Use Fine sandblasting for bonding 50µm and conventional fine sandblasting 70-250µm Fine sandblasting for bonding 50µm and conventional fine sandblasting 70-250µm Fine sandblasting for bonding 50µm and conventional fine sandblasting 25-70µm Fine sandblasting for bonding 50µm and conventional fine sandblasting 25-70µm
Permissible mains voltage 100 - 120 V 220 - 240 V 100 - 120 V 220 - 240 V
Permissible mains frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Weight (empty, 2-tanks) 11.5 kg 11.5 kg 11.5 kg 11.5 kg
Dimensions (W x H x D) (1-2 tank version) 395 x 320 x 510 mm 395 x 320 x 510 mm 395 x 320 x 510 mm 395 x 320 x 510 mm
Connection pressure 6 - 8 bar
87 - 116 psi		 6 - 8 bar
87 - 116 psi		 6 - 8 bar
87 - 116 psi		 6 - 7 bar
87 - 116 psi
Air consumption (max.) 98 l/min
3.46 cfm		 98 l/min
3.46 cfm		 98 l/min
3.46 cfm		 98 l/min
3.46 cfm
Lamp power 16 W 16 W 16 W 16 W
Intensity of lighting (max., at 410 mm distance) 4.8 lx 4.8 lx 4.8 lx 4.8 lx
Tank capacity 1,000 ml 1,000 ml 1,000 ml 1,000 ml
Number of tanks 2 - 4 2 - 4 2 - 4 2 - 4
Blasting chamber volume 20 l
5.3 gal		 20 l
5.3 gal		 20 l
5.3 gal		 20 l
5.3 gal
Immediate stop function 1 1 1 1
Silicone-coated panel yes yes yes yes
Item number
29694250
Dimensions (W x H x D) (3-4 tanks)
395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding
0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting
0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting
1 - 6 bar
14.5 - 87 psi
Use
Fine sandblasting for bonding 50µm and conventional fine sandblasting 70-250µm
Permissible mains voltage
100 - 120 V
Permissible mains frequency
50 - 60 Hz
Weight (empty, 2-tanks)
11.5 kg
Dimensions (W x H x D) (1-2 tank version)
395 x 320 x 510 mm
Connection pressure
6 - 8 bar
87 - 116 psi
Air consumption (max.)
98 l/min
3.46 cfm
Lamp power
16 W
Intensity of lighting (max., at 410 mm distance)
4.8 lx
Tank capacity
1,000 ml
Number of tanks
2 - 4
Blasting chamber volume
20 l
5.3 gal
Immediate stop function
1
Silicone-coated panel
yes
Item number
29691250
Dimensions (W x H x D) (3-4 tanks)
395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding
0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting
0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting
1 - 6 bar
14.5 - 87 psi
Use
Fine sandblasting for bonding 50µm and conventional fine sandblasting 70-250µm
Permissible mains voltage
220 - 240 V
Permissible mains frequency
50 - 60 Hz
Weight (empty, 2-tanks)
11.5 kg
Dimensions (W x H x D) (1-2 tank version)
395 x 320 x 510 mm
Connection pressure
6 - 8 bar
87 - 116 psi
Air consumption (max.)
98 l/min
3.46 cfm
Lamp power
16 W
Intensity of lighting (max., at 410 mm distance)
4.8 lx
Tank capacity
1,000 ml
Number of tanks
2 - 4
Blasting chamber volume
20 l
5.3 gal
Immediate stop function
1
Silicone-coated panel
yes
Item number
29694050
Dimensions (W x H x D) (3-4 tanks)
395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding
0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting
0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting
1 - 6 bar
14.5 - 87 psi
Use
Fine sandblasting for bonding 50µm and conventional fine sandblasting 25-70µm
Permissible mains voltage
100 - 120 V
Permissible mains frequency
50 - 60 Hz
Weight (empty, 2-tanks)
11.5 kg
Dimensions (W x H x D) (1-2 tank version)
395 x 320 x 510 mm
Connection pressure
6 - 8 bar
87 - 116 psi
Air consumption (max.)
98 l/min
3.46 cfm
Lamp power
16 W
Intensity of lighting (max., at 410 mm distance)
4.8 lx
Tank capacity
1,000 ml
Number of tanks
2 - 4
Blasting chamber volume
20 l
5.3 gal
Immediate stop function
1
Silicone-coated panel
yes
Item number
29691050
Dimensions (W x H x D) (3-4 tanks)
395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding
0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting
0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting
1 - 6 bar
14.5 - 87 psi
Use
Fine sandblasting for bonding 50µm and conventional fine sandblasting 25-70µm
Permissible mains voltage
220 - 240 V
Permissible mains frequency
50 - 60 Hz
Weight (empty, 2-tanks)
11.5 kg
Dimensions (W x H x D) (1-2 tank version)
395 x 320 x 510 mm
Connection pressure
6 - 7 bar
87 - 116 psi
Air consumption (max.)
98 l/min
3.46 cfm
Lamp power
16 W
Intensity of lighting (max., at 410 mm distance)
4.8 lx
Tank capacity
1,000 ml
Number of tanks
2 - 4
Blasting chamber volume
20 l
5.3 gal
Immediate stop function
1
Silicone-coated panel
yes

Technical data

Basic prebonder, 70-250 µm, 100-120 V Basic prebonder, 70-250 µm, 220-240 V Basic prebonder, 25-70 µm, 100-120 V Basic prebonder, 25-70 µm, 220-240 V
Item number 29694250 29691250 29694050 29691050
Dimensions (W x H x D) (3-4 tanks) 395 x 320 x 610 mm 395 x 320 x 610 mm 395 x 320 x 610 mm 395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding 0.6 - 1 bar
8.7 - 14.5 psi		 0.6 - 1 bar
8.7 - 14.5 psi		 0.6 - 1 bar
8.7 - 14.5 psi		 0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting 0.8 bar
11.6 psi		 0.8 bar
11.6 psi		 0.8 bar
11.6 psi		 0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting 1 - 6 bar
14.5 - 87 psi		 1 - 6 bar
14.5 - 87 psi		 1 - 6 bar
14.5 - 87 psi		 1 - 6 bar
14.5 - 87 psi
Use Fine sandblasting for bonding 50µm and conventional fine sandblasting 70-250µm Fine sandblasting for bonding 50µm and conventional fine sandblasting 70-250µm Fine sandblasting for bonding 50µm and conventional fine sandblasting 25-70µm Fine sandblasting for bonding 50µm and conventional fine sandblasting 25-70µm
Permissible mains voltage 100 - 120 V 220 - 240 V 100 - 120 V 220 - 240 V
Permissible mains frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Weight (empty, 2-tanks) 11.5 kg 11.5 kg 11.5 kg 11.5 kg
Dimensions (W x H x D) (1-2 tank version) 395 x 320 x 510 mm 395 x 320 x 510 mm 395 x 320 x 510 mm 395 x 320 x 510 mm
Connection pressure 6 - 8 bar
87 - 116 psi		 6 - 8 bar
87 - 116 psi		 6 - 8 bar
87 - 116 psi		 6 - 7 bar
87 - 116 psi
Air consumption (max.) 98 l/min
3.46 cfm		 98 l/min
3.46 cfm		 98 l/min
3.46 cfm		 98 l/min
3.46 cfm
Lamp power 16 W 16 W 16 W 16 W
Intensity of lighting (max., at 410 mm distance) 4.8 lx 4.8 lx 4.8 lx 4.8 lx
Tank capacity 1,000 ml 1,000 ml 1,000 ml 1,000 ml
Number of tanks 2 - 4 2 - 4 2 - 4 2 - 4
Blasting chamber volume 20 l
5.3 gal		 20 l
5.3 gal		 20 l
5.3 gal		 20 l
5.3 gal
Immediate stop function 1 1 1 1
Silicone-coated panel yes yes yes yes
Item number
29694250
Dimensions (W x H x D) (3-4 tanks)
395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding
0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting
0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting
1 - 6 bar
14.5 - 87 psi
Use
Fine sandblasting for bonding 50µm and conventional fine sandblasting 70-250µm
Permissible mains voltage
100 - 120 V
Permissible mains frequency
50 - 60 Hz
Weight (empty, 2-tanks)
11.5 kg
Dimensions (W x H x D) (1-2 tank version)
395 x 320 x 510 mm
Connection pressure
6 - 8 bar
87 - 116 psi
Air consumption (max.)
98 l/min
3.46 cfm
Lamp power
16 W
Intensity of lighting (max., at 410 mm distance)
4.8 lx
Tank capacity
1,000 ml
Number of tanks
2 - 4
Blasting chamber volume
20 l
5.3 gal
Immediate stop function
1
Silicone-coated panel
yes
Item number
29691250
Dimensions (W x H x D) (3-4 tanks)
395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding
0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting
0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting
1 - 6 bar
14.5 - 87 psi
Use
Fine sandblasting for bonding 50µm and conventional fine sandblasting 70-250µm
Permissible mains voltage
220 - 240 V
Permissible mains frequency
50 - 60 Hz
Weight (empty, 2-tanks)
11.5 kg
Dimensions (W x H x D) (1-2 tank version)
395 x 320 x 510 mm
Connection pressure
6 - 8 bar
87 - 116 psi
Air consumption (max.)
98 l/min
3.46 cfm
Lamp power
16 W
Intensity of lighting (max., at 410 mm distance)
4.8 lx
Tank capacity
1,000 ml
Number of tanks
2 - 4
Blasting chamber volume
20 l
5.3 gal
Immediate stop function
1
Silicone-coated panel
yes
Item number
29694050
Dimensions (W x H x D) (3-4 tanks)
395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding
0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting
0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting
1 - 6 bar
14.5 - 87 psi
Use
Fine sandblasting for bonding 50µm and conventional fine sandblasting 25-70µm
Permissible mains voltage
100 - 120 V
Permissible mains frequency
50 - 60 Hz
Weight (empty, 2-tanks)
11.5 kg
Dimensions (W x H x D) (1-2 tank version)
395 x 320 x 510 mm
Connection pressure
6 - 8 bar
87 - 116 psi
Air consumption (max.)
98 l/min
3.46 cfm
Lamp power
16 W
Intensity of lighting (max., at 410 mm distance)
4.8 lx
Tank capacity
1,000 ml
Number of tanks
2 - 4
Blasting chamber volume
20 l
5.3 gal
Immediate stop function
1
Silicone-coated panel
yes
Item number
29691050
Dimensions (W x H x D) (3-4 tanks)
395 x 320 x 610 mm
Working pressure - Fine sandblasting for bonding
0.6 - 1 bar
8.7 - 14.5 psi
Working pressure - Recommended setting
0.8 bar
11.6 psi
Working pressure - Conventional fine sandblasting
1 - 6 bar
14.5 - 87 psi
Use
Fine sandblasting for bonding 50µm and conventional fine sandblasting 25-70µm
Permissible mains voltage
220 - 240 V
Permissible mains frequency
50 - 60 Hz
Weight (empty, 2-tanks)
11.5 kg
Dimensions (W x H x D) (1-2 tank version)
395 x 320 x 510 mm
Connection pressure
6 - 7 bar
87 - 116 psi
Air consumption (max.)
98 l/min
3.46 cfm
Lamp power
16 W
Intensity of lighting (max., at 410 mm distance)
4.8 lx
Tank capacity
1,000 ml
Number of tanks
2 - 4
Blasting chamber volume
20 l
5.3 gal
Immediate stop function
1
Silicone-coated panel
yes

Prebonder surface pro

Item number 15970050
Description:

50 µm

Scope of delivery:
4 x 500 g (1.10 lbs.)

Basic prebonder, 25-70 µm, 220-240 V

Item number 29691050
View spare parts list

  • Brochures

    Flyer Basic prebonder
    PDF (881KB)
    Download

  • Quick Start Guide

    BASIC prebonder
    PDF (4.38MB)
    Multilingual
    Download

  • Instruction manual

    BASIC prebonder
    PDF (11.73MB)
    Multilingual
    Download

  • Declaration of conformity

    Dentale Strahlgeräte
    PDF (1.81MB)
    Multilingual
    Download

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