PROXAN®-KV 2 G / KV 2 ST

Name: PROXAN®-KV 2 G / KV 2 ST
Brand: PROXAN
SKU: proxan-kv-2-g-kv-2-st

Two-component polysulphide-based joint sealant

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Description

PROXAN®- KV 2 is a fast-reacting two-component joint sealant for joints whose widths have the potential to expand by up to 35%. The PROXAN®- KV 2 G variant is pourable, self-levelling and particularly suitable for horizontal floor joints with a maximum gradient of 3%. The PROXAN®- KV 2 ST variant is firm and suitable for sealing vertical joints, such as skirting and wall joints. PROXAN®- KV 2 is tested and externally inspected for chemical resistance according to DIN EN 14188-2. Main areas of application: road, bridge and tunnel construction.

Technical standards: DIN EN 14188-2, TL/TP Fug-StB (load classes A–C)

Advantages

High permissible total deformation of 35%, elongation at rupture: 500%
Fast-reacting
Good compatibility with existing material through chemical bonding
Isocyanate and solvent-free

Available packaging

KV 2 G – Can 2.5 l: 4 per unit KV 2 G – Can 4.0 l: 4 per unit KV 2 G – Bucket 10.0 l: 30 per pallet KV 2 G – Tin 25.0 l: 14 per pallet KV 2 ST – Can 2.5 l: 4 per unit KV 2 ST – Can 4.0 l: 4 per unit KV 2 ST – Cartridge 450 ml: 12 per unit

Downloads

Technical datasheet

Download PDF file

Technical info

Application instructions

Substrate preparation

Joints must be clean, dry and free of loose particles, mortar residuals, dust, grease and dirt. Temperature (measured at the building part) must be between +5 °C and +40 °C; joint sealant temperature must be at least +10 °C at application. Absorbent substrate (concrete): prime with PROXAN®- CP-P or CP-S (flash-off 30 min – 2 h, not fully dry). Non-absorbent substrate (cast steel, polymer concrete): prime with PROXAN®- CP-G (flash-off 10–30 min). Cut asphalt or semi-rigid covers: prime with PROXAN®- CP-A (flash-off 2–6 h). Backfill with a non-absorbing material (PE round profile, closed cell) to correct sealing depth and avoid three-flank bonding.

Application

KV 2 G: Add separately packed component B to component A and mix with a blade agitator at low speed until completely homogenous without white stripes (no air inclusion). Apply into joints with hand or air gun; remove any air bubbles by gently brushing with a soft brush during the application time. KV 2 ST: Components A and B are packed together in one tin; mix thoroughly with a paddle mixer. Tape joint edges before application, smooth the applied sealant and remove tapes before curing. Mixing ratio A:B = 100:10 for both variants.

Weather conditions

Temperature (building part) must be between +5 °C and +40 °C. Joint sealant temperature must be at least +10 °C at application. Product is not frost susceptible but must be brought to minimum +10 °C before use.

Storage

Dry, at temperatures below +25 °C in unopened original packaging for up to 12 months.

Technical data

Polymer base	polysulphide
Colour	grey, black
Mixing ratio A:B	100 : 10
Application time (23 °C, 50 % r.h.)	approx. 120 min
Curing (23 °C, 50 % r.h.)	approx. 24 h
Max. allowed deformation	35 % of joint width
E 140 – KV 2 G	approx. 0.25 N/mm²
Shore-A hardness – KV 2 G	approx. 12
E 140 – KV 2 ST	approx. 0.3 N/mm²
Shore-A hardness – KV 2 ST	approx. 15