2026-10-23T19:44:09

Bathroom Waterproofing Flood Test: How Many Hours? Sika vs LATICRETE

卫生间防水闭水试验要多久？Sika 2 x 24 小时与 LATICRETE 24–72 小时对比

Bathroom waterproofing flood test is a step often skipped because the tiles are already ordered and the tiler is waiting. A leak found only after tiling means tearing everything out again. This article compares what three manufacturer documents say: the Sika Indonesia bathroom guide page, the November 2025 technical data sheet (TDS) of SikaTop-107 Seal ID, and LATICRETE TDS 169 on flood testing procedures (revised 30 July 2026). The durations differ between documents, and we mark what is not written down. Data as of 23 October 2026.

Bathroom waterproofing flood test: Sika Indonesia compared with LATICRETE TDS 169

Item	What the document says	Document	homeX note	Source
Soak test duration	Soak test of at least 2 x 24 hours, after plugging the drain and letting the waterproofing dry	Sika Indonesia guide page	Equals 48 hours; we read it as a minimum	Sika Indonesia
Work sequence	First coat applied at least 20 cm up from the floor on the walls; corners reinforced with Sovamesh between coats 1 and 2; soak test; only then tile; if it seeps, recoat	Sika Indonesia guide page	This figure sits in the Tips box of that page, which also asks not to puncture the waterproofing when tiling	Sika Indonesia
Coats and consumption	At least 2 coats; 1.0–1.5 kg set/m² per coat; maximum 2 kg/m² per coat; A:B mix 1:4 (brush) or 1:5 (trowel) by weight	TDS SikaTop-107 Seal ID (Nov 2025, v06.01)	homeX calculation: 2 coats = 2.0–3.0 kg/m²; a 25 kg set covers roughly 8–12 m² (25/3 = 8.3 and 25/2 = 12.5), before waste	Sika Indonesia
Recoat interval and drying	Second coat once the first has dried (2–6 hours), maximum 48 hours between coats; protect from rain and splashes for about 6 hours; tile within 7 days of the final brushed coat	TDS SikaTop-107 Seal ID (Nov 2025, v06.01)	The TDS gives no flood-test duration or wait before filling with water: data gap	Sika Indonesia
Water depth	At least 25 mm and at most 100 mm at the low point; mean depth no more than 65 mm; procedure is for floors sloping up to 2%	LATICRETE TDS 169 (revision 30 Jul 2026)	homeX calculation: 3 m² floor x 50 mm = 150 litres, about 150 kg (1 litre of water = 1 kg); at 100 mm it is about 300 kg	LATICRETE
Test duration	24 to 72 hours from reaching maximum depth; continuous monitoring; inspect the area below every 1–2 hours; adding water mid-test invalidates the result	LATICRETE TDS 169 (revision 30 Jul 2026)	Sika 2 x 24 hours (48 hours) falls inside this range, but the two documents cover different products and contexts	LATICRETE
Evaporation control	Place a watertight flat pan filled to a similar depth nearby; measure water level at start and end in both; if the test area loses significantly more, the membrane is likely leaking	LATICRETE TDS 169 (revision 30 Jul 2026)	A cheap way to separate evaporation from leakage	LATICRETE
Drain plugs	Inflatable or threaded mechanical plugs; first fill around the drain to check that point; temporary containment must not penetrate the membrane; protection boards removed before the test	LATICRETE TDS 169 (revision 30 Jul 2026)	In a home bathroom the floor drain is a weak point to check first	LATICRETE
Wait before flooding	LATICRETE product-specific: HYDRO BAN about 2 hours after full cure at 21°C or above (24 hours at 10–21°C); 9235 at least 7 days; LATAPOXY Waterproof Flashing Mortar 24 hours	LATICRETE TDS 169 (revision 30 Jul 2026)	Not figures for Sika or other brands; follow the TDS of the product used	LATICRETE
Result and retest	Successful if no leaks occur during the test period and the membrane and flashing stay intact; after repairs a new flood test is required; load capacity to be checked by a structural engineer first	LATICRETE TDS 169 (revision 30 Jul 2026)	The TDS names ASTM D5957 as its basis; we did not read that standard	LATICRETE

Source: the "Cara Aplikasi Waterproofing Kamar Mandi" guide page (Sika Indonesia), the SikaTop-107 Seal ID TDS November 2025 version 06.01, and LATICRETE TDS 169 "Flood Testing Procedures" revised 30 July 2026. Data gaps: (1) the Sika TDS has no flood-test hours, the 2 x 24 hours figure appears only on the guide page; (2) TDS 169 is a global document in inch units based on ASTM D5957, not an Indonesia-specific guide, and we did not check which LATICRETE products are sold in Indonesia; (3) we did not read any national standard or the ASTM text on flood testing; (4) other waterproofing types (bituminous membrane, polyurethane, epoxy) have their own TDS that we did not read. Data as of 23 October 2026.

How to read two different figures

homeX analysis, not a standard quotation: the Sika 2 x 24 hours falls inside the LATICRETE 24 to 72 hours, so they do not contradict each other. But they come from different manufacturers for different products, and only the Sika page talks about home bathrooms. If the contract or project specification already states test hours, follow that. If not, record the agreed duration and the waterproofing brand in the handover minutes and check it against that product manufacturer document.

Flood test sequence at home (two sources combined)

homeX calculation and ordering based on the documents above: (1) make sure the final coat is dry per the product TDS; (2) check pinholes, corners and pipe bases; (3) plug the floor drain without puncturing the membrane; (4) fill to 25–50 mm at the lowest point (TDS 169 allows up to 100 mm but the load rises) and mark the water level with a dated photo; (5) place a control pan; (6) check the ceiling or wall in the room below every 1–2 hours at the start; (7) drain and dry afterwards. Schedule so tiling does not pass the 7-day limit after the final coat in the SikaTop-107 TDS; that TDS does not say whether a flood test changes this limit (data gap).

Buyer tips

Ask the contractor to record test duration (hours) and water level in the handover minutes before tiling.
Photograph the water level with date and time at the start and end of the test.
Do not add water mid-test; TDS 169 says adding water invalidates the result.
Do not puncture the membrane when fitting plugs or temporary containment.

Request a bathroom waterproofing flood test quote for your project

homeX can compare several brands at once and prepare a written quote for projects, renovations or shop stock. Send your needs (brand, size, quantity, location) via WhatsApp +62 821 1818 998, or visit the homeX showroom: Priskilla Tower, 6th floor, Jl. Atang Sanjaya No.21, Benda, Kota Tangerang, Banten 15125. Visit the homeX Showroom.

Disclaimer: prices change without notice and differ by store, city, pack size, grade and promotion. Data as of 23 October 2026; always confirm with the seller before buying.

FAQ

How many hours should a bathroom waterproofing flood test last? The Sika Indonesia guide page says a soak test of at least 2 x 24 hours; LATICRETE TDS 169 says 24 to 72 hours from reaching maximum depth. The SikaTop-107 Seal ID TDS itself gives no test hours.

When is the flood test done? Before tiling and after the waterproofing has dried. The Sika page sequence: waterproofing, wait to dry, soak test with the drain plugged, then tile. TDS 169 also says to test before any material is installed over the membrane.

What if the flood test shows a leak? Sika: if seepage remains, apply the waterproofing coat again. LATICRETE: drain the water, find the source, repair per the manufacturer recommendations, then repeat the flood test.